Yes4All Speed Training Resistance / Agility Parachute - Premium Quality Running Chute Parachute - &sup2;S736Z Great for resistance training to improve speed, stamina, strength, and acceleration 360 degree rotation belt with motion free ring and quick-release black buckle for sprints, overspeed, and unencumbered movement Measures 54 by 54 inches; provides approximately 15 to 35 pounds of progressive resistance, depending on speed of user Fits up to a 42 waist Fully functional unit includes parachute and belt. Also comes with a handy carrying bag