These reference marker points can be used for 3D scanner, very practical. The marking point is easy to use, are 3D scanner parts. Attaching these markers to the object and giving the software a constant feature to track, owning high accuracy, let you have satisfying using feeling. Features -Color:Black -Material:Reflective film -Size:13.30X6.10X0.10cm/5.23X2.40X0.04in -Size:7.60X5.50X0.10cm/2.99X2.16X0.04in -Note: 10mm outer diameter with 6mm inner diameter(large); 6mm outer diameter with 3mm inner diameter(small) -These 3D scanning reflection markers are convenient and easy to use, featuring reflective film and marker points. -These reflective film markers support real-time motion capture, can accurately capture the movement of the human body or object. -These marker points are highly reflective and tear-resistant, widely used in architecture, engineering, design and other fields. -Compatible with most 3D and optical trackers, these markers offer excellent functionality and practicality. -Use these scanner marking points when scanning specific objects, easy to transport, use, and store. Package list: reflective film marking points(large) 56 x reflective film marking points(small)