ITEM NAME:4Pcs Alloy Differential Cup Differential Reduction Joint Cup Rc Parts for WlY6P1 4Pcs Alloy Differential Cup Differential Reduction Joint Cup Rc Parts for WlY6P1 HIGH QUALITY MATERIAL. Adopting high quality material and exquisite workmanship, the differential cup is durable and anti-corrosion for long term use. GREAT REPLACEMENT. It is a great replacement accessory for upgrading your RC model car. EASY INSTALL. The differential reduction joint cup is easy to install and remove. Also, 4pcs per each which is practical and convenient to replace. APPLICATION. This RC parts is specially designed for WLtoys A949 A959 A969 A979 K929. Item Type: RC Accessory Compatible With: For WLtoys A949 A959 A969 A979 K929 Quantity: 4PCS/Set Colour:red Material:Aluminum alloy Size:2cm long Package Contents: 4*Differential Cup.EASY INSTALL. The differential reduction joint cup is easy to install and remove. Also, 4pcs per each which is practical and convenient to replace. HIGH QUALITY MATERIAL. 4 Differential Cup. This RC parts is specially designed for WLtoys A949 A959 A969 A979 K929.