The perfect answer to coaches training the spin technique with shot put or discus. This training device is durable, but lightweight and easy to move around. Athletes can use it solo and it is designed so they can get a lot of reps without the coach having to be present at all times. It is adjustable to any athlete. The Sweeper is a great tool for any skill level. It is currently used at the collegiate level, as well as high school and middle school.