Description: 100% Brand new and high quality The surface might be rust because of ferrous alloy, but the strength is 4 times than aluminum alloy Quantity: 16pcs Suit for WLtoys 12428 12423 RC Crawler Car Material: Alloy Package Includes: 2 Pieces 30T Differential Gears 2 Pieces 12T Driving Gears 4 Pieces 16T Planet Gears 4 Pieces 10T Planet Gears
