Suitable for those who frequently adjust their height Whether you ' re a professional cyclist or a daily bicyclist, this clamp convenience and reliability quickly release seatpost clamps are easy to assemble and use, quick and and very practical Designed for easy installation and removal, this clamp ensures a fit for your tube Suitable for most types of mountain bikes, road, city, folding bikes Made from aluminum alloy, light weight, resistance and enduring, Manufacturer: ZBIianxer