Indisputable that it is easy to use due to its minimalistic design. The bicycle tube holder is mainly used to repair the sliding wire of the seat tube and enhance the appearance of the bike, making the bike look more perfect. With features such as corrosion resistance, rust resistance, wear resistance, and high hardness, this product can be used for a long time. It is constructed of alloy material. The length of this product is 5.6cm and width is 3.2cm. This seat tube clamp head is not suitable for all bikes. It is only compatible with certain single-nail head designs, such as most of the emerging tubes on the market and similar seat tubes. Item Name: Seatpost Clamps Head Material: Alloy Features: Easy to Assemble, Fixed Firmly, Anti-rust Size Details: L: 5.6cm, W: 3.2cm (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: 1 x Seatpost Clamps Head