1. Material: iron + bearing steel + rubber 2. Purpose: adjusting the chain tightness 3. Applicable models: for Yamaha YFZ 350 Banshee 1987-2006 4. Note: please check the appearance, size and shape of the item carefully before ordering and then compare it with your original item 5. Weight: about 82 g 6. Size: outer diameter about 35 x 26 mm, inner diameter about 8 mm
