Feature: 1. SIZE AND QUANTITY: Inner diameter is 3mm, outer diameter for 6mm, possess high reflective brightness, tear resistant, water proof and sunscreen, good ink absorption, magnetic marking points can be repeatedly attached 2. WORKING PRINCIPLE: Reflective marking point with bright reflective film is on the appearance of PET film with aluminum plated way adhesion to a layer of reflective glass microbeads, through the way of screen printing according to the specific size of the hollow printed circular reflection spot 3. HIGH ACCURACY SCANNING: These markers are rigorously tested and validated to provide accurate data for applications such as 3D scanning, reverse engineering, metrology and inspection 4. EASY TO USE: The marking is designed with adhesive foil, which is user friendly and easy to apply and remove. Alignment during scanning ensure excellent data and accurate reference points 5. 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 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 6. WIDE RANGE OF APPLICATIONS: Position markers are widely used in automotive, aerospace, machinery, manufacturing, power generation, electronics and education industries. Whether you are a professional user or an educational institution, can provide strong support for your project Specification: Item Type: 3D Scanning Markers Material: PET and reflective film Size: Inner Diameter: Approx. 3mm / 0.12in, Outer Diameter: Approx. 6mm / 0.24in Performance: Highly reflective, strong adhesive, magnetic, reusable Quantity: 150Pcs. Package List: 150 x 3D Scanning Markers