20-29 inch bicycle quick release shelf

Material: Aluminum Product Number: Full quick release shelf Features: · Sturdy and durable, mainly made of aluminum alloy, with black coating. ·Adjustable height and length-suitable for bicycles from 20 to 29 inches, can Quickly install on the seatpost and fix it on the frame with screws to securely position. · Hexagon head screws for fixing and installation. · Supplied assembly tools