The Arm-Blaster Curl

The Arm Blaster Curl — a thin strip of metal that hangs from your shoulders and prevents your elbows from moving forward and back during a curl — forces your biceps to work much harder than they would if allowed to swing a little. Consequently, this curl is the best single exercise for working all parts of the biceps with maximum intensity.
The Arm Blaster will help your bicep and tricep workouts by allowing maximum stability and isolation!  The Arm Blaster the #1 product for forcing strict movement with bicep and tricep exercises. The Arm Blaster is now making a huge comeback! Get huge biceps! Preferred by most trainers to maximize arm development!!