20PCS Optical Passive Reflective Ball, Motion Capture Markers Balls, Marker Point, Three-Dimensional Motion Marking Sphere, Passive Marker Point (40mm Diameter -M4 Thread)

20PCS Optical Passive Reflective Ball, Motion Capture Markers Balls, Marker Point, Three-Dimensional Motion Marking Sphere, Passive Marker Point (40mm Diameter -M4 Thread)

• CONSISTENT RETRO-REFLECTIVE PERFORMANCE – Built with passive retro-reflective material featuring a reflection coefficient of 350–500 cd/lx/m² (650–1100nm wavelength range), helping maintain stable marker visibility and consistent tracking performance across different distances and capture angles.
• THREADED DESIGN WITH 20MM SOFT BASE – Each marker ball features a threaded mounting design and a 20mm flexible soft base for secure attachment on curved surfaces, tracked objects, and rigid body setups.
• DESIGNED FOR REPEATED USE – Constructed with a durable plastic sphere body and reflective strips. The soft base supports replaceable double-sided adhesive tape for convenient setup and repeated application on both flat and curved surfaces.
• MULTIPLE SIZE AND THREAD OPTIONS AVAILABLE – Available in diameter options ranging from 4mm to 40mm with selectable M3 or M4 threaded hole configurations to support different motion capture requirements, including full-body tracking, facial capture, hand and finger tracking, and object tracking applications.
• SUITABLE FOR OPTICAL MOTION CAPTURE WORKFLOWS – Designed for use in film production, animation, game development, VR/AR projects, biomechanics studies, and sports movement analysis with passive optical tracking systems.