Strengthen your core and improve flexibility with this 23-inch balance ball trainer that handles up to 660 lbs with ease. The half exercise ball design creates an unstable surface that activates more muscles during planks, lunges, and balance exercises. Two resistance bands are included for adding upper body workouts to your routine. Built from quality Pvc, Pp, and Tpe materials, the textured surface prevents slipping during intense sessions. A foot pump is included for quick inflation, and the compact design fits neatly in any home gym or living space for convenient daily use.