Quality Assurance: Each wheel undergoes three inspection processes from material to completion, ensuring a 99.9% pass rate. Specific Features: The exterior of the wheels is designed like an artificial wheel, with yellow and black colors, giving it a more three-dimensional appearance. Good Performance: Rubber-coated wheels provide smooth operation and enhanced grip. Carefully Designed: The intelligent four-wheel-drive vehicle can achieve various movement modes such as left and right translation, large drift operation, 45° inclined directional movement, square track movement, etc. Wide Range of Applications: The robot McNamm wheel is compatible with building blocks and TT motors. The intelligent four-wheel-drive vehicles can realize various movement modes like left and right translation, large drift operation, 45° inclined directional movement, square track movement, and more. The robot wheels are compatible with building blocks and TT motors. Color: Yellow + Black Material: ABS Size: Diameter: Approx. 48mm. Package Contents: 4 x Tire (Only the above package content is included; other products are not.) Note: Light reflections and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.