The Vac-U-Lock E-Z Rider Ball bounces, rocks, and moves to fit your every position! This E-Z Rider ball comes with the Vac-U-Lock attachment plug, and is compatible with all Vac-U-Lock attachments. Plus, it’s compact for travel, easily inflatable, and can be enjoyed by males, females, and couples. Just pop on your attachment of choice and bounce your way to ecstasy! Can support up to 250 pounds.