Solid wheel 1. Size: 9*3 2. Hole diameter: 20mm 3. Hub length: 55mm 4. Wheel diameter: 225mm 5. Wheel width: 75mm Our company professionally produces all kinds of trolleys tires and accessories and supply all kinds of modles of pneumatic rubber, solid rubber wheels, , powder rubber wheel and casters, foam PU wheels, motorcycle tires and tubes etc. We can produce according to customers' demands. Provide sample processing services.