BENEFIT-Perfect for enhancing cardio-aerobic conditioning and toning muscles. Made to emulate the movement a boxer makes when punching a speed bag. This is the "go-anywhere" model for a workout on the go. FEATURE - It works perfect while sitting or standing. It can also accommodate the specific needs of individuals in physical rehabilitation programs and in wheelchairs. DESIGN - We wrap the handle lever with two rolls of foam, you can use it if you like