Hot Racing 12mm Hex bearing conversion front Adapter for most 1/10th 2WD vehicles. This might not fit all 12mm wheel to all 2WD cars there might be more parts and modification are need. FEATURES: - 6061 aluminum construction- silver in color YOU WILL RECEIVE: - Two (2) 12mm Hex Adapters - Two 5x10X4 ball bearing - Two 5x9x3 Bearing - Two 5x6 Crush Sleeve REQUIREMENTS: - Installation might need modification and more parts (5mm Shim and M4 Thin lock nut) COMMENTS: - There is modification need for most cars and wheels. This is not recommended for beginners.