This MINI 3PI car N20 Caster Robot Ball Wheel consists of four small balls and a diameter of 12mm large steel ball, all the steel ball with 304 stainless steel ball, to ensure long-term use will not rust, the outer ring material is plastic, suitable for smart car chassis Support and desktop miniature robots above.
- Dimensions: 22 x 15 mm (Diameter x Height)
- Weight: 10 gm
- Body Case Material: Plastic
- Ball Material: 304 Stainless Steel
- Application: for MiniQ robot