2ndWind Health & Wellness
This trainer looks like half an exercise ball mounted on a rigid plastic base. You can use it with the dome side facing up, so it sits flat on the plastic base, or as a wobble board with the dome side facing down.Versatile enough to use as stretching aids, balance-training equipment, rehabilitation equipment and even strength-training and plyometric training tools.
Taking up less space than a stability ball, and because it's flat on one side, you would be hard pressed to find a better product to work out at home. Oh and because of the flat base you won't have to worry about this trainer rolling away from you the way that stability balls frequently do.