This product is easy to install and remove, convenient to use. Strong adjustable clamp with screw holds your device firmly in place. Anti-slip rubber cushion keep phone steady and safe. It is widely compatible, suitable for most cellphones. Features - Color: Grey. - Material: ABS+PC+Silicone. - Size: 12 x 6.3 x 8cm. - The clamps are covered with non-slip silicone rubber to protect the cellphone from shaking and being scratched, pretty reliable and everlasting - Helps to hold your device firmly in place for added security. - Convenient tool-free installation makes it easy to attach to any possible handlebar, just need to locate and lock the nut. - Widely used on the handlebar of bicycle, motorcycle, stroller, treadmill, shopping cart and any other place as long as you have a round bar. - Fits any smart phone. Warm Tip: Dear buyer, Due to lighting effect,monitor's brightness,manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. sincerely hope that you can understand