Seat tube clamps, also called saddle clamps, fix the seat post. With those clamps, you can adjust the saddle height individually to the driver. The quick release can be opened and closed quickly without tools. Those seat tube clamps are especially suitable for drivers who are riding often off road and on unpaved roads. The saddle clamps with quick release allow the adjustment of the seat height for additional freedom of movement in uphill or downhill passages. In contrast to the seat tube clamps with quick release, there are also saddle clamps that can only be opened with tools. Such clamps maintain the set seat height and at the same time, it protects against theft of your saddle and seat post.