Features:

1. Tire with sponge liner for more strength
2. With upgraded tire tread for greater friction
3. New design wheel for better combination with the motor
4. Diameter: 65 mm
5. Width : 27 mm
6. The material of Wheel: High-strength plastic
7. The material of Tyre: Rubber
8. Color: Blue

Features:

1. Shaft Diameter : 6 mm.
2. Wheel Diameter : 70 mm.
3. Wheel Width : 8 mm.
4. Loading Capacity : 2 kg.
5. Color : Red/Yellow.

Features:

• Wheel diameter : 40MM
• Can lock the 360-degree steering gear
• Can be used a pulley to make a rubber belt driven  system