Includes all taxes
1. There are many types of calipers, and there will be differences between different calipers. Please read the comparison pictures in the above or the description below.
2. The calipers are shipped without batteries, please purchase them yourself.
3. If you find scratches on the screen, this is normal. Please tear off the protective film on the screen and you will get a new screen.
4. The package arrives at the buyer after long distance international transportation. If the items are not received or the items are damaged due to logistics reasons, please contact us in time.

Product Information:
Model: Caliper Black 100
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is black. This caliper is cheaper than 0-150MM caliper, although it is shorter.
Measuring Range: 0-100mm/0-4In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement
Battery Model: 1.5V, LR44/AG13 button battery (note: calipers are not equipped with batteries)
Model: Caliper Black 150
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is black. This caliper is cheaper than other metal calipers on the market. Very suitable for personal use.
Measuring Range: 0-150mm/0-6In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement, Depth measurement
Battery Model: 1.5V, LR44/AG13 button battery (note: calipers are not equipped with batteries)
Model: Caliper Silver 150
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is silver. Compared with the black caliper, it has better manufacturing process.
Measuring Range: 0-150mm/0-6In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement, Depth measurement
Battery Model: 1.5V, LR44/AG13 button battery (note: calipers are not equipped with batteries)
Model: Caliper Blue 150
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is blue. Compared with the black caliper, it has better manufacturing technology and feels more comfortable when held in hand.
Measuring Range: 0-150mm/0-6In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement
Battery Model: 1.5V, LR44/AG13 button battery (note: calipers are not equipped with batteries)
Model: Big Screen Black 150
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is black. It has a large screen display, so you don't have to worry about losing sight of numbers.
Measuring Range: 0-150mm/0-6In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: large screen with LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement, Depth measurement
Battery Model: 3V, CR2032 battery (note: calipers are not equipped with batteries)
Model: Big Screen Silver 150
Features: This caliper is made of plastic carbon fiber composites. It is light, practical. This caliper is Silver. It has a large screen display, so you don't have to worry about losing sight of numbers.
Measuring Range: 0-150mm/0-6In
Resolution: 0.1mm/0.01In
Accuracy: ±0.2mm/0.01In
Display: large screen with LCD display
Measurement Method: Outside/Inside diameter measurement, Step measurement, Depth measurement
Battery Model: 3V, CR2032 battery (note: calipers are not equipped with batteries)




Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
Major Credit & Debit Cards (Visa, MasterCard, American Express)
Secure Online Payment Gateways (such as PayPal, Stripe, or other providers available at checkout)
Any additional payment methods displayed during checkout
All payments must be completed in full at the time of purchase.
2. Secure Transactions
All transactions are processed through encrypted and secure payment systems to protect your personal and financial information. We do not store your full payment details on our servers.
3. Currency
Prices are displayed in the currency indicated on the website. If you are purchasing from another country, your bank may apply currency conversion fees.
4. Order Confirmation
Once your payment has been successfully processed, you will receive an order confirmation email containing your purchase details.
5. Failed or Declined Payments
If your payment is declined, please verify your billing information or contact your bank. Orders will only be processed after successful payment confirmation.
6. Fraud Prevention
BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
4. Tracking Information
Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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