This is a replacement set of Arrma 4x4 Rear Slider Driveshafts, intended for use with the Arrma 4S BLX 4X4 models of the Kraton and Outcast kits. 
 
Features:
Tough composite material for exceptional durability.
Precision molded slider driveshafts for smooth power transfer.
High-quality steel cross pins for dependable operation.
Supplied pre-assembled for fast and simple installation to your vehicle.
Includes:
(2) Assembled UJ Slider Driveshafts