This rivet is made of , which can withstand use. Features the aluminum, plastic and steel material, which has high durability, not easy to deform. Fine workmanship, practicality. This rivet will make the repair and fix easier and smoother. Features -Color:Silver -Material:Aluminum, plastic, steel -Size:4.00X0.50X0.50cm/1.57X0.20X0.20in - These rivets are made with aluminum handles and steel mandrels. With high-performance corrosion and acid resistance, , you no longer worry about them rusting and breaking when installing. - Packaged in a sturdy clear plastic for easy storage. Also, the can be used as a storage . - Wide application: Our rivets are very strong and perfect for both indoor and outdoor use. - Perfect for you when you need them most. After the riveting process is completed, the surface will not be deformed. Good resistance to temperature changes. - Enough quantity for you to use for a long time, satisfying your long term use requirements. Package list: 20 x M2.4x6 rivets 20 x M3x6 rivets 20 x M4x8 rivets 20 x .2x10 rivets 20 x .2x8 rivets 20 x .2x6.4 rivets