Item Type: 48mm Omni Directional Wheel_x000D_ Material: Nylon, PE_x000D_ Gross Weight: 52g / 1.8oz_x000D_ Color: Black grey_x000D_ Wheel Diameter: 48mm / 1.9in_x000D_ Wheel Width: 26mm / 1.0in_x000D_ Roller Diameter: 13mm / 0.51in_x000D_ Wheel Aperture: 12mm / 0.47in_x000D_ Load Capacity: 2kg_x000D_ Applicable Models: For Mindstorm compatible hubs and other motors. 1360 Degree Rotatable: Installed the omni directional wheel in a fixed position, it can rotate 360 degrees and move flexibly. 2Applications: Omni wheels compatible for Mindstorm are commonly used in industrial markets, ground and inversion applications, such as manual and electric transmission systems, feed rails, workstation turntables, robot wheels, etc. 3Durable: The 48mm double row omni wheels are made of nylon and PE materials, which are durable and wear resistant. It is applicable to different environments and has low maintenance cost. 4With Coupling: Equipped with plastic round and cross shaft couplings. The omnidirectional wheel is more sturdy, the fixing direction is clear, the installation is simple and stable, and the load stability is excellent. 5Stable Performance: Durable construction and unlimited mobility make this Omni wheel ideal for harsh environments and industrial applications.1 x 48mm Omnidirectional Wheel 2 x Coupling 2 x Screws 1. Due to manual measurement, 1?3mm error is allowed, thank you!_x000D_ 2. Due to the difference between different monitors, the picture may not reflect the actual color of the project._x000D_ 3. The round and cross shaft are presented as gifts. When matching, you need to use something to knock it in. After knocking it in, you may not be able to take it out. Please use it carefully. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia