John Boos M.A.S.S. line enhances diversity for settings that include Physical Therapy, Rehabilitation, Personal Training, CrossFit Training, and Sport Specific Training.
The M.A.S.S. Squat-Shrug Plus is the safest and most effective way to perform many of the most beneficial strength and free-hand exercises. The unique adjustable height/multi-directional handles system offers the user dozens of options to safely start, perform, and end exercises that include squats, deadlifts, shrugs, farmer’s walk, push ups, pull ups, and dips.