UniHobby Q20 Mini Omni Wheels for Arduino Robot Chassis Smart Car(2 pcs/ pack)

Description

UniHobby Q20 Mini Omni Wheels for Arduino Robot Chassis Smart Car(2 pcs pack) Weight: 17.7 g Steel ball size and material: Φ 15, steel (optional) Scaffold material: nylon Fixed frame pitch: 40 mm Fixed hole diameter: 3.1 mm Φ Universal wheel overall height: 20 mm Bearing: the load is less than 100 g is recommended packeting include: 2 x UniHobby Q20 Mini Omni Wheels