The innovative 9ft.s Sling and Ring Cock Ring and Ball Sling Set is designed to help enhance an erection and optimize staying power.An ingenious triple c-ring that wraps around your length, balls and base for maximum support and hardness; and a in.sling-ringin. thatft.s a ball stretcher and c-ring all in one. And both in super-flex TPR, soft to the skin and ultra-body-safe.