The Danskin Core Ball Plus is a fully functional exercise ball, plus several unique features including: weighted ball handles, resistance bands, and our patented "balance ring". The balance ring provides beginner and intermediate users the benefit of a stability ball workout without the instability and challenges associated with balancing on a standard 65 cm ball. The resistance bands and weighted ball handles add a fun, efficient upper body workout routine. 65cm stability ball with side loops Inflatable “balance ring” base 2 medium strength resistance tubes @ 9” 2 medium strength resistance tubes @ 18” 2 weighted ball handles @ 1lb each Dual-action hand pump Illustrated workout poster Shipping weight: 6 lbs.