1. Features: - Made of good materials, it is sturdier and more durable with a reasonable appearance design. - Lowers the center of gravity and improves climbing performance. - Easy to use and convenient to replace. 2. Specification parameters: - Quantity: 4 pieces. - Outer diameter: 55 mm. - Width: 20 mm. - Hexagon size: 7 mm. - Single weight: 62 grams. - Applicable vehicle models: 1/18, K10, Fire Horse, Glacier, MOGRICH, Patriot, Cruiser, Katana Cruiser. - Dimensions: 55×20 mm. - Material: Brass + rubber. - Color: Yellow. 3. Package contents: - 4 remote - controlled car wheels. - Only the above package contents are included, and other items are not included. 4. Precautions: - Light reflection and different displays may cause slight differences between the item color and the actual object. - A measurement error of ±1 - 3 cm is allowed.