Unibos Fitness Push-ups bars help you neutralise the wrist angle so there is less pressure put on the joints.Put the bar right by your ribs with your knuckles facing you to emphasize the triceps， or place them wider than your shoulders to put greater emphasis on the fronts of the shoulders.Without the pain， you might be able to perform more push-ups than you normally would with your palms flat on the floorHeavy Duty Vinyl (Plastic) with foam gripMEASUREMENTSLength: 21 cmWidth: 14 cmHeight: 12.5 cmPackage included: a Pair