The All Pro Adjustable Weight Exercise Belt features a one-size-fits-all belt, with no weight on the stomach or spine. Neoprene casing for minimal water retention. Waterproof, vinyl-covered removable steel weights. Weights can be added or removed as required for progressive resistive exercise. Develop strength, endurance and toning. Instruction sheet included. Comes with 10 lbs of weights in 5 ounce increments.