Features: Expertly CNC machined aluminum made. Perfect style shock-proof and high crush-resistant. Compatible with Axial SCX24 TRX4M FCX24 Redcat Ascent-18 HPI Venture18. Specifications: Wheel Size: 1.0” Material: Aluminum alloy Quantity: 4PCS Color: Silver / Red / Multicolored / Purple Thickness: 18.5mm/0.73in Outer Diameter: 31mm/1.2in Inner Diameter: 23mm/0.9in Drive Hex: 7mm Offset: -3.5mm (Negative) Package Included: 4PCS * 1.0 Inch Wheel Hubs