set2: 2 x 38T Gear + 4 x 24T Gear + 8 x 12T Gear + 2 x 15T Gear & 1 x Differential BoxUse:Vehicles & Remote Control ToysRC Parts & Accs:Speed ControllersFour-wheel Drive Attributes:MotorsTool Supplies:Assembled classUpgrade Parts/Accessories:Differential BoxMade of High Quality Metal, Stronger And More DurableRemote Control Peripherals/Devices:Differential BoxSuitable for WLtoys A949 A959 A969 A979 A959-B A969-B A979-B.Great quality, Stable performanceFine workmanship and durable in useUpgrade parts for remote control RC vehicle modelsColour: as shownMaterial: metal/plasticPackage Contents:2 x 38T Gear4 x 24T Gear8 x 12T Gear2 x 15T Gear1 x Differential BoxOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.