Features 1、SIZE AND QUANTITY: Inner diameter is 3mm, outer diameter for 6mm, each sheet contain 56 single point mark, possess high reflective brightness, tear resistant, water proof and sunscreen, good ink absorption, repeatable fit 2、HIGH ACCURACY SCANNING: These 3D scanning markers are used for featureless objects, suitable for reverse engineering, metrology and inspection. Alignment during scanning ensure excellent data and reference points 3、EASY TO USE: The 3D scanning reflective markers are designed with adhesive foil, which is easy to apply and remove, user friendly without worry, ensure a seamless experience for professionals and beginners alike 4、APPLICABLE SCENARIO: Used for 3D scanners in the field of motion information acquisition(such as three dimensional motion catch, three dimensional gait analysis, etc.), the scanning markers can reflect the light emitted by the device (usually infrared light) reflected by the data device to receive, and the system processes the received data to achieve fixed point processing 5、WIDE APPLICATION: 3D scanner tracking point is easy to pick up, 3D optical tracking mark is an indispensable auxiliary position tool and calibration tool in optical mapping, machine viewing and other fields Specification Item Type: 3D Scanning Markers Material: PET and reflective film Size: Inner Diameter: Approx. 3mm / 0.12in, Outer Diameter: Approx. 6mm / 0.24in Thickness: 0.15mm Quantity: 10 Sheets(56pcs per sheet, 560pcs in total) Package List 10 Sheet x 3D Scanning Markers Stickers(56pcs per sheet)