The Protective Cover is used in combination with the Wall Arm and the Top Hopper TH1000 Vertical Jump Measuring Device. The Top Hopper Protective Cover will protect the Measuring Device when assembled to the Wall Mount when not in use. The Top Hopper Protective Cover is hinged to easily swing open during use and can be opened from the ground. The door is held shut by magnets. The Top Hopper Protective Cover is powder coated to help protect the steel from the environment and looks great.