Future Internet | Free Full-Text | Development of a Vision-Based Unmanned Ground Vehicle for Mapping and Tennis Ball Collection: A Fuzzy Logic Approach
Wheels Evolve Into Balls with Spherical Drive System
Metal Ball Caster - RobotShop
Metal Ball Caster Wheel
A Robot That Balances on a Ball - IEEE Spectrum
1 Piece ball round Small Swivel Caster Wheel robot platform Fixed Metal A12 | eBay