Fat Gripz™ are the new worldwide training phenomenon which can help support your training by widening the width of your grip. Fat Gripz™ are now used by champion bodybuilders as well as many members of NFL teams, US Special Forces, British Royal Marine Commandos, top UFC fighters, elite power lifters, and rugby players. Key Benefits 12.7cm length and 5.7cm thickness fits all bars Bevelled ends ensures they fit dumbbells Fits dumbbells, barbells and pull up bars Doubles the thickness of an Olympic bar Length: 12.7 cm Height: 6.35 cm Width: 6.35 cm Weight: 460 g