Feature: 1. GOOD FRICTION AND EXTREMELY LONG SERVICE LIFE: The TPU rubber driven roller is made of good quality polyurethane TPU material, which has good friction and extremely long service life. All parts except the TPU rubber driven roller are made of cold rolled SPCC steel and aluminum. There is no plastic and Acrylic composition, so there will be no deformation 2. ACHIEVE OMNI DIRECTIONAL MOTION: Omnidirectional wheels allow the robot to achieve omni directional motion while supporting larger loads 3. GOOD RIGIDITY AND STRONG IMPACT RESISTANCE: Made of cold rolled SPCC steel, come with good rigidity and strong impact resistance 4. FLEXIBLE AND SMOOTH LATERAL MOVEMENT: TPU rubber driven rollers are embedded with dual bearing design, and the 21 small rubber wheels of the omnidirectional wheel are embedded with a total of 42 miniature bearings. The sliding friction of the small wheel axle is transformed into rolling friction, so that the lateral movement is flexible and smooth, the load is stronger, and the micro resistance performance of the lateral movement of the omnidirectional wheel is truly realized 5. SURFACE HIGH TEMPERATURE PAINT TREATMENT: The surface of the product is after high temperature paint treatment, beautiful and durable 6. SMALL APPEARANCE: The diameter of these wheels is 203mm, the wheel width for 40mm, and the appearance is small, which can provide more space for the construction mechanism to assemble other parts to achieve more abundant functions Specification: Item Type: Omnidirectional Wheel Material: SPCC steel, rubber, aluminum Diameter: Approx. 203mm / 8in Wheel Width: Approx. 40mm / 1.57in Composition: TPU rubber roller x 21 + wheels stamped from cold rolled SPCC steel Features: 45 Degree omnidirectional wheel Purpose: Suitable for various small accurate applications, especially suitable for driving applications of various small robots. Package List: 1 x Omnidirectional Wheel Left Note: Please match the appropriate design size before use.