Description:This screw has CNC technology and anodizing process, which is solid and high strength, it will not easy to deform and has a fine craftsmanship for using.Designed with polishing surface which is smooth and bright with soft gentle edge, it will be anti-corrosion and easy to install for a colorful appearance.This product is made of aluminum alloy material.The length of the product is 1.2cm, the width is 1.2cm, the height is 0.96cm.It is suitable for bike to repair broken screws of chainring or chainwheel which is durable.Item Name: Bike Chainwheel ScrewMaterial: Aluminum AlloySpecification: 4.9mm/6.5mmSize Details: 1.2cm x 1.2cm x 0.96cm/0.47" x 0.47" x 0.38" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes:5 x Bike Chainwheel Screws