Unique and Fun! This swing includes a real nautical buoy ball (16" diameter), plastisol coated steel bar, trapeze rings, and chains. Removable buoy ball set-up is attached to bar using quick links. Simply remove the buoy ball setup anytime and you have a trapeze swing. Ball ships deflated. Recommended for ages 5-12. Buoy Ball Only (16" diameter) You can also purchase the buoy ball only setup and add-on to your existing trapeze bar for $65 by selecting "Buoy Ball Only" from the configuration option below. This set up easily attaches to any trapeze bar using the attached quick links.