TRIANGULAR DESIGN: The most stable triangular design is used for installation, and this shape is extremely stable. We also include a plastic adapter sleeve so that it can be installed on a round tube more wide and a square tube frame. ADJUSTABLE LENGTH: The footrest length is adjustable, the shortest is 22cm/8.7in, the longest is 41cm/16.1in. So it can be applied to bicycles with wheel diameters of 16 inch, 20 inch, 24 inch and 26 inch. You can adjust it according to your needs. Non-slip pads: The bottom of the footrest is designed with non-slip pads, which can prevent slipping on wet surfaces and the ground while increasing the contact area with the ground, making it more stable. GOOD MATERIAL: The footrest is made of high quality aluminum alloy. It has been painted black and has the characteristics of strong pressure resistance and is not easy to rust. High elastic spring can ensure vibration minimal when folded, making it safe and stable. Specification: Item Type: Mountain Bike Kickstand Material: aluminum alloy Color: as picture shown Weight: approx. 388g Applicable type: suitable for bicycles with wheel diameters of 16 inches, 20 inches, 24 inches and 26 inches Installation position: installed on the base of the frame Objective: ride a bike Function: Mountain Bike Foot Support Minimum length: approx. 22cm/8.7inch Maximum length: approx. 41cm/16.1inch List of packages: 2 x bicycle kickstand