S4*4*2cm M8*7.5*4cm [Environmental protection material] These exquisite parking belts are made of high-quality PU plastic, environmentally friendly, safe, strong and tough. Suitable for tires with a width of1.75-2.25 inches [PC Construction]Bicycle rack buckle is strong and sturdy , easily mounts to any type of wall or vertical surface, and serves as the bicycle hanger for mountain bikes. It is suitable for most conventional bike frames. [A buckle that can be used multiple times] The principle of this is to squeeze the tire through the rotation of two wheels to deform the tire. The bicycle storage buckle has a multi-functional side hook, which can help you hang gloves, key chains, small villages or Other small objects to make your mountain bike parking more convenient. [Easy to install] We provide two expansion screws, and there are cracks in the installation diagram, so you can safely and reliably fix the parking buckle in the correct position, this is very convenient [Appearance] The curved curve of the parking buckle is not only suitable for the shape of the tire, but also can improve the load-bearing capacity. It is made of high-strength PC plastic, rigid and weighty, stylish and beautiful, safe and free to use your creativity, free and easy parking anytime, anywhere