Item Type: Omni Directional Wheel Valve Body Material: Aluminum Alloy Roll Material: Rubber Gasket Material: Nylon Wheel Diameter: Approx. 152.4mm / 6 Inch Wheel Width: Approx. 45.72mm / 1.8in Number of Rollers: 15 Number of Boards: 2 Roll Length: Approx. 38.1mm / 1.5in Load Capacity of Each Wheel: Approx. 15kg / 33.1lb Application: Suitable for Driving Various Small Robots Color: As Pictures Shown Weight: Approx. 1295g / 2.9lb1Good Features: Omni directional wheel is made of aluminum alloy, rubber, nylon material, with large friction force, light movement, solid structure, and stable tire operation without jumping noise. 2Motion and Rotation: Omni wheel moves and rotates in all directions, and has rotation and lateral mobility. You can easily control and track direction, making steering faster than ordinary wheels. 3Rolling Bearings: Two rolling bearings are embedded in each driven small wheel. The precise machining can control the clearance of the driven small wheel shaft in a very small range. Omni directional wheel is particularly suitable for various small robots. 4Rubber Rollers and Load Capacity: Each wheel consists of 15 rubber rollers. The load capacity of each wheel reaches 15kg / 33. 1lb. It is powered independently and has better stability. 5Multi Functions: 6 inch 152mm omni wheel can realize forward, transverse, oblique, rotary and combination motion modes. Stroke and rotation at any angle with zero radius. 2 x 152mm OmniWheel 6 x Screw