1、TPU material wheel bottom, strong toughness, shock absorption and wear resistance. 2、Manganese steel brackets are connected, easy to install, hard and easy to deform, long service life. 3、Built-in accurate bearing rotation, smooth use and no stuck. 4、Low frictional resistance, high temperature resistance, high speed, low noise. 5、Can be used for the replacement casters of tool carts, trolley, medical carts, etc. Features: 1. TPU material wheel bottom, strong toughness, shock absorption and wear resistance. 2. Manganese steel brackets are connected, easy to install, hard and easy to deform, long service life. 3. Built-in accurate bearing rotation, smooth use and no stuck. 4. Low frictional resistance, high temperature resistance, high speed, low noise. 5. Can be used for the replacement casters of tool carts, trolley, medical carts, etc. Specification: Condition: 100% Brand New Item Name: Caster Bracket Material: Manganese Steel Wheel Material: TPU Size: 2 inches Outer Diameter: Approx. 50mm / 2in Thickness: Approx. 25mm / 1in Fixing Seat: Approx. 51 * 70mm / 2 * 2.8in Fixed Hole Center Distance: Approx. 35 * 56mm / 1.4 * 2.2in Fixing Method: Screw Fixed Hole Position: 4 Caster Type: #1: Universal casters with brakes, #2: Universal casters, #3: Rigid Casters (optional) Package List: 1 * Caster Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.