Sensi ball, 75cm (29.5in) The Cando® sensi-ball has a specially textured “nubby” surface that adds tactile and visual elements to ball therapy. The bumps also massage the user. Balls are used to improve balance, coordination, flexibility, and strength and even just for fun. Balls can support up to 600lbs. (275kg.) Product photo may not exactly match the product offered for sale. Please refer to the product description.