4pcs MTB Bicycle Chainwheel Screws 6/8mm Mountain Road Bike Crankset Chainring Bolts Features: 100% brand new and high quality. With a stylish appearance, the alloy material avoids thread slip, high surface hardness, and is not easy to scratch. Titanium plating, more rust-proof durable, cool fashion. Easy to install, which is convenient to use, commonly used on mountain bikes for two-piece disc locking. Lightweight, tough and durable, it can be used for a long time. Specification: Type: Chainwheel Screws Color: rainbow Material: titanium-plated alloy steel A: 6mm, about 4g/pc, for single speed B: 8mm, about 5g/pc, for double speed Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 4pcs Bicycle Chainwheel Screws