letsgood climbing pull up power ball hold grips - durable and non-slip hand grips strength trainer exerciser for bouldering, pull-up, kettlebells, fitness, workout letsgood <b>rock climbing pull up power ball hold grips with straps for ninja warriors bouldering pull-up fitness workout</b><br><br> <b>product description:</b><br>improve your grip strength. great addition to home gym, kettlebells, pull up bar.<br>our power grip balls are the perfect training tools for working grip strength while doing pull-ups & fitness.<br> our 2.8inch diameter grip balls provide a radius for open hand training.<br> from pinch strength to core exercises the power grip balls provide more advanced rock climbing training options.<br> specially designed ball with soft solid plastic. anti-skid design improve your exercise performance.<br><br> <b>specification:</b><br> weight: 2 grip ball - 9.8oz/ 280g, stainless steel hooks - 12.3oz/ 350g<br> material: ball - plastic, straps - nylon, hooks - stainless steel<br> color: yellow, black<br><br> <b>packing list:</b><br> 2 x grip ball<br> 2 x stainless steel hooks<br> 2 x nylon webbing<br>