Metal Slipper Clutch Spur Gear Set Compatible for ARRMA 1:10 Senton Typhon 4X4 RC Car US Description: 100% brand new material: metal Optional color: Black/Blue/Red/Dark Blue Specification: Big teeth: 91T Small teeth: 17T 19T 21T Applicable models: For 1/10 ARRMA Senton Typhon 4X4 Features: Made of high-quality materials for durability Replace original damaged parts to ensure long life and better working performance Nice spare parts upgrade Package list: A gear set