Disc 'o' Sit Air Cushion is an inflatable tactile seat cushion which helps to improve and strengthen the core muscles of the body and improves posture.  Good posture promotes improved memory, focus and productivity.  The  Disc 'o' Sit Cushion is used by therapists and trainers to offer ground exercises in order to develop coordination and to improve core muscles, reflexes and stability. Use the Gymnic Disc 'o' Sit Inflatable Seat Cushion at school, home, the office, or at the gym to perform a wide range of exercises.

Inflatable by mouth; simply adjust the inflation intensity in order to customize the stability level you need. 

Also available in a smaller size, Disc 'o' Sit Junior, .