Granvela Family Fitness Suit, Jump Rope + Hand Grips A Fast and Cheap Way to Increase Grip and Forearm Strength Using a Hand Strengthener for only a few minutes each day can improve your quality of life It has been scientifically proven that using a Grip Strengthener helps relieve stress. Foam handles offer extra comfort. Feather-light makes it easily and conveniently carryable anywhere. The product is enclosed in a custom-designed Aoneky colorful box, making it a great gift