AQF arm blaster is a simple device to use but with guaranteed results. The bicep blaster is ideal if you are looking to bulk up your biceps, consisting of a webbed nylon belt, which has a thick neoprene neck pad for comfort and dense elbow pads. It will help isolate your arms and shoulder while performing dumbbell or barbell curls. It has a uniquely contoured and ergonomic design to fit perfectly around the torso with a quick release adjustable strap for perfect positioning. AQF arm blaster ensures arms are not moved at shoulder joints and arms are held at correct position. This enables fuller pump, total muscle fatigue and stimulating maximum muscle growth. One size fits all.