[Quality first] This product uses high-quality aluminum alloy and stainless steel screws. The bracket has an oval mounting hole and a gasket. The attachment will not scratch the frame [High quality and flexibility] The use of heavy-duty bicycle side brackets ensures that even heavy-duty bicycles can remain stable. It is made of rust-proof aluminum alloy and can support all bicycles weighing no more than 30 kg. [Height adjustable anti-skid] The height adjustment allows you to individually adjust the inclination of the parked bicycle. The non-slip floor design and large plastic feet prevent the bike from slipping in the mud. The rubber feet of this bike stand provide stability [High compatibility] The bike rack is compatible with most bicycles, for example. Including mountain bikes, racing bikes and folding bikes. Suitable for bicycles with a wheel diameter of 22"-27" [Easy to install] The bike rack can be assembled quickly and easily. Just loosen the three screws, attach the bracket to the bicycle frame, put it back in place and tighten the screws. The bike is kept stable by extending the bike rack