ITEM NAME:RC Car 42Teeth Speed Reducer Gear for WLtoys A959 A979 A969 A949 Upgrade Parts Description : 100 % Brand New RC Car 42T Teeth Speed Reducer Gear . Compatible with WLtoys A959 A979 A969 A949 1 / 18 RC Car . Great RC Car Spare Parts , Durable . Easy install ,& amp ; great backup . Material : Metal Specification : Color : Silver External Diameter : 30mm / 1 . 18inch Inner Diameter : 5mm / 0 . 20inch Height : 10mm / 0 . 39inch Package Includes : 1 Piece 42T Speed Reducer Gear SKU: DMO0020964561019671.Compatible with WLtoys A959 A979 A969 A949 1 / 18 RC Car. 1 Piece 42T Speed Reducer Gear. Great RC Car Spare Parts, Durable. Color : Silver. Height : 10mm / 0.