An exercise device for facilitating a user to perform a variety of exercises using an exercise ball supported on the device is disclosed. The device comprises a pouch having a mouth end wherein the pouch is configured to form a seat portion to the user. The device further includes a plurality of linking members attached to the mouth end by an attachment means and a plurality of straps. The lower end of the plurality of straps is secured to the linking members and the upper end of the plurality of straps is attached to a securing means. Each of the pair of straps is crisscrossed in preparation for attachment to the exercise ball. The crisscrossed straps is looped around the exercise ball and secured by using the securing means. The crisscross arrangement of the straps securely holds the exercise ball in relation to the seat portion.