Includes:- 1 x Aluminum Main Pulley 50T- 1 x One Way Bearing Ø10x Ø14x12mm- 2 x Ball Bearing Ø10x Ø15x4mm(Already assembled from factory)- 1 x Bushing Ø10x Ø13x1.5mmUsed for:- Goblin Kraken 580