RDX offers Most Advanced, Scientifically Developed Reverse Grip. The hook on this set is set "in" towards the palm of your hand as opposed to the standard style where the hook is set facing away from your hand. The hook offers the user an unprecedented ability to attach itself to dumbbells or weight lifting equipment with superior speed and comfort. Excellent for barbell, dumbbell and chinning bar exercises. Adjustable hook and loop closure customizes fit around the wrist. One size fits most. Unique "No-Slip" Custom Engineered Material Exclusive to RDX Grips. The grip material remains durable while maintaining the superior grip throughout the life of the product. Scientifically designed without bulk specifically to allow the athlete to feel a connection with the weight. Wide Wrist Strap sewn with high-density Gel with a hook & loop closure for excellent wrist support. Adjustable wrist support keeps the wrist in the correct position while training. Sold in pair. One size fits all.