A soft ply box is a piece of equipment commonly used in gyms and fitness centers for plyometric exercises. It is designed to be a safe and effective platform for jumping, stepping, and other explosive movements that target the legs, glutes, and core muscles.
 
The soft ply box is made of foam, which provides a cushioned surface that reduces the impact of landing and lowers the risk of injury. The foam is also lightweight, making it easy to move around and adjust to different heights.
The box typically comes in a cube shape, with three or four sides of different heights ranging from 12 inches to 30 inches. Users can vary the height of the box by flipping it over and adjusting the side they jump on.
 
Overall, the soft ply box is an essential piece of equipment for those looking to improve their explosive power, agility, and overall fitness levels.