BUILD ARM SIZE AND STRENGTH - Fat Gripz will help you build bigger, stronger arms. They work by wrapping around barbells, dumbbells, pull up bars and exercise machine handles and increasing their diameter TIME-TESTED METHODS, NEW SCIENCE - Science has now confirmed what athletes and bodybuilders have known for decades - that using a thicker diameter bar causes much greater muscle activation in the arms which leads to incredible size and strength gains TRAIN LIKE THE BEST - Fat Gripz have won FIVE major awards and have been used for years by many: special forces soldiers, champion bodybuilders, MMA fighters, pro football / basketball / baseball players and elite athletes around the world MILITARY-SPEC MATERIAL - The result of years of refinement of design and materials, Fat Gripz are as tough as your most intense workout so you will never need to replace them. The angled ends mean that they will even fit the angled EZ bars GREAT VALUE - Grab your pair today - they cost less than a bottle of protein powder and will help you build muscle and strength for a lifetime