Technologically Advanced...
The Twister Tensioner Takes Belt Cleaning Out Of The Dark Ages

 The patented Twister Tensioner has no mechanical parts; it is constructed of polyurethane, specially compounded to the torque value for a specific belt width.

The Twister Tensioner holds the belt cleaner to the head pulley until the blade wears out, delivering constant, even pressure without skipping or chattering -- and never needs adjusting.

 The Twister will not rust or corrode and is guaranteed for life. It is easy to install and requires only a 4½ inch (114 mm) surface to mount. If you're in belt maintenance... the Twister could take a lot of tension out of your life.