Shop

The Bosu trainer looks like half an exercise ball mounted on a rigid plastic base. You can use the Bosu ball 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. Bosu trainers are versatile enough to use as stretching aids, balance-training equipment, rehabilitation equipment and even strength-training and plyometric training tools. The Bosu takes up less space than a stability ball, and because it’s flat on one side, you don’t have to worry about a Bosu trainer rolling away from you the way that stability balls