The Harbinger Push Up Sport is designed to increase your range of motion while performing a push up. By increasing your range of motion, you can engage more muscles to maximize results. The padded comfort grips will keep your wrists in neutral positions to reduce joint strain. Plus, you can increase your muscle strength and definition in arms, shoulders, chest, back and abs. With 360 Degree stability, you can move confidently in all directions. The specialty non-skid platform grips work well on carpet and all hard floor surfaces. The Harbinger Push Up Sport provides super easy storage with stacking handles.