Features:1. Bike Crankset Bolt: This crankset bolt can be effectively locked and fixed to enhance the performance of your bike, and is a very common small part.2. Aluminum Alloy: This crankset bolt is made of aluminum alloy material, rust and resistant, hard and not easily deformed, durable and practical.3. Firmly Fixed: This crank hex screw repair will hold your bike securely with clear threads that will not loosen when tightened.4. Universal Type: This crank screw repair is universal for mountain or road bikes, very practical, you can buy with confidence.5. Easy to Install: This crank bolt is perfect for replacing loose bolts and is easy to install, so you can replace it with one person.They are a great for replaced stripped M15/M26 crank arm bolts.Compatibility: ALL GXP crankM15 crank and M26 cap/M22Installation requires 8mm hex and 16MM /10MM hex keyColour: blackMaterial: aluminium alloyPackage Contents:1 x screw1 x gasket(XX1 Specification does not include)1 x boltOnly the above package content, other products are not included.Note: light shooting and different displays may the color of the item in the photo a little different from the real thing. The measurement allowed error is +/- 1-3cm.