"The Halfords 16""-20"" adjustable kickstand is designed especially for kids' bikes. Kids tend to throw their bikes down anywhere they feel like it which can cause expensive damage. A simple solution, this kickstand will allow your little one to park their bike anywhere out of harm's way. The height of the stand can be quickly and easily adjusted with either a screwdriver or 8mm spanner to allow for the perfect lean angle, accommodating wheel sizes between 16"" and 20""."