Material: The plastic stirrup is made of high quality plastic, which is light and stable and can be used for a long time. which never deform and are lighter than steel, accurate measurements can reduce unnecessary errors. Convenient installation: The plastic caliper is divided into two parts, the caliper and the disc fixed. The caliper can be pressed directly into the fixed disc slot. The operation is simple and convenient to use. Easy to carry: Convenient and easy to take with you, no sharp edges on the measuring jaws and safely stored in your pocket and taken anywhere. anywhere, does not take up space. The ease of movement of the sliding mechanism guarantees quick and easy measurement and reading. Measuring range: 0-80 mm (0-3.15 inch), accuracy up to 0.015 mm. Two readings, cm and inch for easy reading, provide an accurate reading between graduations on a linear scale. Increase resolution and reduce measurement uncertainty/human estimation error. Suitable for: It is used to measure button diameter, seedling diameter, jewel jadeite, etc. It is light and practical and does not scratch the object to be inspected. Can also be used as a teaching aid. Features: - The plastic stirrup is made of high quality plastic, which is light, stable and can be used for a long time. - The maximum measuring range of the mini vernier caliper is 80mm (3.15 inch), which can accurately measure small and medium-sized items and has a high level of practicality . - Peripheral polishing, the edge area pocket caliper has been polished to make the edges smoother, to fully protect objects. - Use this sliding vernier smooth for quick inside, outside, step and depth measurements. - Ideal for jewelers, measurements, teacher teaching, etc. Use for science projects or permanent makeup tattoo eyebrow line science projects. Specification: Material: plastic Colors: orange Measuring range: 0-80mm (0-3.15inch) Package Consists of: 6 * Vernier Calipers lucky meet