WUZHOU Bicycle Seatpost Screw Titanium Alloy Seat Post Bolt Seatpost Bicycle Cycle Bolts Round Head Screw for Bicycle Replacement Accessory PREMIUM MATERIALThe bike screw is made of premium titanium alloy, which is anti-corrosion, strong and durable. DURABLE TO USEThe bicycle seatpost screw adopts precision processing NOT EASY TO FALL OFFOur product adopts precision threads, firm connection, not easy to fall off. It is a great DIY replacement parts for bike. Color: silver Size: M5x40mm, details as shown in the picture Quantity delivered: 2 pieces Warm prompt: 1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 2. Because of different monitors and lamplight, the picture may not reflect the actual color of the item, really thank you for your kind understanding 3. Only the above package contents, excluding other products.