TOK has developed a new type of uni-directional clutch, named the SR2. The SR2 provides controlled motion to adjust height at any position. Through its inverse interrupting mechanism, this breakthrough technique conducts driving from the input shaft to the output shaft, and locks the input in place even if the drive is stopped. Thanks to this new mechanism, you can easily lift heavy objects and lock them precisely into position. This new control motion is perfect for applications such as adjustable tables, handicap sinks, and more.  If you are interested in the SR2 clutch, check the motion at the video below. TOK creates New Motion for you!  The product summary is also available here.