Perfect Pushup - Original The pair patent-pending rotating pushup handles with comfortable rubberized grips Stable bases with rubber bottoms that grip well on carpet and all hard floor surfaces Smooth, long lasting steel ball-bearing rotational systems Navy SEAL inspired exercise chart that shows proper pushup form and includes a workout planner based on SEAL 2 minute drills The unique rotating handles helps speed up results by engaging more muscles in the arms, chest, shoulders, and back