Compatible with WLtoys 12428 12423 12628 FY03 1/12 RC Crawler Car Truck Lightweight upgrade instantly enhances overall performance in handling and durability Strong metal alloy for maximum performance. High performance, durable in use. Easy to install and upgrade. Item Name: Rear Center Drive Shaft Replacement Part NO.:0025 Material: Metal Length range: 80mm-105mm. Diameter: 12mm Joint Inner Diamter:5mm Color: Red Weight:66g Package Includes: 2 x Rear Drive Shaft Note:due to different monitors, there may be a little color difference.