High quality Nylon material Beadlock design, don't need to glue 2.2" wheel rims are for 1/10 RC Rock Crawler Material: Nylon Quantity: 4Pcs Color: Black / Orange Outer Diameter: 64mm / 2.51in Thickness: 35mm / 1.38in Drive Hex: 12mm/0.47in Shaft Diameter: 7mm/0.28in Weight: 40g/pcs (1.41oz) Note:The size may have 1-2mm differs due to manual measurement. Content:4Pcs Wheel Rims (What you choose in Color What you get)