STRAUSS Adjustable Heavy-Duty Plastic Hand Grip Strengthener, (Black/Green) and Moto Push up Bar, Pair (Black/Blue) Durable construction & ergonomic design Adjustable resistance - hand grip strengthener can be adjustable from 22 to 88 lbs (10 to 40 kg), it can satisfy different power levels, from the beginners to the advanced Suitable for power push up training Comes in compact design and ergonomic handles for a comfortable and secure grip With daily use you can achieve to narrow the abdomen, hips, chest while strengthening your upper abdomen, chest shoulder and triceps, biceps Comes in pack of two