Description: 100 percent new and high quality Feature: Made of high quality metal Rust-proof treatment on the surface of gears The gears are milled by precisely milling skill Best gear combo for WLtoys A959 RC car Specifications: Material: Metal Color: As picture shown Quantity: 1set(8pcs or 16pcs ) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors. the picture may not reflect the actual color of the item. Thank you! Package includes: 8pcs: 1 x 38T Differential Gear 1 x 15T Driving Gear 2 x 24T Differential Planet Gear 4 x 12T Differential Planet Gear(other accessories demo in the picture is not included.) 16pcs: 2 x 38T Differential Gear 2x 15T Driving Gear 4 x 24T Differential Planet Gear 8 x 12T Differential Planet Gear(other accessories demo in the picture is not included.)