Core Prodigy Fit Grips 2.0 Thick Bar Weight Lifting Big Grips Fit Grips by Core Prodigy will transform your grip and arms! By increasing the diameter of the bar, you will feel a much greater muscle activation in your hands and arms. This increased muscle activation leads to bigger, faster gains in muscle size and functional strength (especially in overall arm size). We guarantee you'll feel the difference from the very first time you use them. Long-lasting, high-quality, dense non-slip military grade silicone that resists extreme wear and tear. Fit Grips have a unique cross-stitch grip designed that enables a safe and strong hold. Used by NFL players, MMA fighters, bodybuilders, cross-fitters, power-lifters and many pro athletes. Fit Grips allow you to instantly increase the outside diameter of dumbbells, curl bars, resistance bands, pull up bars, push up bars and cable attachments for thick bar (fat) training. By increasing the size of the bar (making it fat) you will notice more isolation on your forearms, biceps and triceps. Fit Grips have a 2 inch outside diameter and are 4 5/8 inches long. Inside diameter is 1 inch. They are made of high density silicone which allows years of maintenance free use. LIFETIME WARRANTY - Fit Grips are the ultimate fat bar bicep and tricep builder by Core Prodigy - Fitness Equipment Leader