1、[APPLICABLE MODEL] RC drive shaft, differential cup and axle are applicable for WLtoys A949 A959 A969 A979 K929 and other 1/18 RC car. Great replacement accessory to upgrade your RC model car. 2、[ALUMINUM ALLOY MATERIAL] RC dogbone axle diff cup set is made of high quality aluminum alloy material which is highly worn resistant and contributes to high drive efficiency. 3、[PERFECT PERFORMANCE] RC dogbone adapter diff cup joint axle can effectively improve steering stability and have perfect performance in preventing body deformation. 4、[REASONABLE DESIGN] RC diff cup dogbones kit is well designed and perfectly matched to the car model to replace the original accessories and enhance the performance of the RC car. 5、[EASY TO INSTALL AND REMOVE ] RC drive shaft dogbones are easy to install and remove with superb workmanship, improved design and durable use for your model car. Item Type: RC Dogbone Axle Diff Cup Set Material: Aluminum Alloy Applicable Model: For WLtoys A949 A959 A969 A979 K929 and Other 1/18 RC Car 4 x Dogbone 4 x Diff Cup 4 x Axle