AJUSTABLE LONGITUD: This key bike leg to loosen the middle of the screw, the length can be adjustable. The package includes a 4 mm and free multifunctional key so you can easily install it, a 4 mm key to adjust the length.
The maximum adjustment of the leg is 30 cm.
This bike holder with anti-rust aluminum alloy material, waterproof and wear resistant, strong and durable.