Extremely sturdy, well constructed, can handle way too much abuse All of the reviews that me...
Garage Fit Wood Plyo Box – 30/24/20, 24/20/16, 24/20/18, 16/14/12-3 in 1 Plyo Box, Essential for Plyometrics Training and Box Jumps for Cardio and Exercise (20/24/30, Black Non-Slip Surface)
Sammons Preston Aerobic Exercise Step, Step Platform for Workouts and Exercise, High Step Platform with Risers, Stepper for Physical and Occupational Therapy, Exercise Equipment with Height Adjusters