?NOTE?Due to the different bike frame structure, even same size, the vertical height from the ground will be different. Before placing an order, please measure the vertical height from the installation point to the ground to make sure it fits your bike. Please ensure that the scale value range is between 22cm-26cm (8.66in-10.23in). Please DO NOT sit on the bicycle before retracting the kickstand. SUITABLE: This Alloy Bicycle Kickstand fits for most 20 INCH - 22 INCH Mountain Bike/Road Bike, convenient to park a bicycle. ?NOTE?Please choose the size according to the tire mark, as shown in the picture. Not For Snowmobile. Please DO NOT sit on the bicycle before retracting the kickstand. LENGTH ADJUSTABLE & EASILY INSTALL: This mountain bike kickstand with wrench to loosen the middle of screw, length can be adjustable. Package include free 4mm, 8mm wrench for you to easily install. UPGRADED VERSION & DURABILITY: This bike kickstand using anti-rust aluminum alloy material, waterproof and wear-resisting, strong and durable. NON-SLIP FOOT: The Aluminum Alloy Bicycle Kickstand comes with an wide anti-slip reinforced rubber foot to prevent slipping on wet surfaces and sinking in mud.