Spud 18" Triceps and Abdominal Strap for Weight Lifting Bodybuilding Strength Training Spud, Inc 18" Heavy Duty Tricep/Ab strap The short ab strap can be used for crunches on a cable machine, or many other exercises such as: triceps extensions, cable curls, pulldowns, and even cable rows Strap measures 18" end to end. Comes in Black or Yellow