Features: You are bidding on 1 ophthalmic surgical- calipers. They are manufactured under the strict guidelines-established. Calipers measures from 0mm to 20mm in 1mm increments- with scale reading on both sides. Self-lock type. This item is manufactured with medical-grade titanium-alloy, which is lightweight and quiet handy and comfortable to use. Dull finish for aesthetic and corrosion-resistance. Fully Autoclavable/Reusable. Suitable for permanent makeup tattoo- eyebrow line lip and other precise measurements. Package Includes: 1x Eye Calipers Specifications: Material:Titanium-Alloy Type: Straight / Elbow Size: Approx. 8.5cm/3.34inch Range: 0-20mm note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.