Get On It!: BOSU® Balance Trainer Workouts for Core Strength and a Super Toned BodyEbookGet On It!: BOSU® Balance Trainer Workouts for Core Strength and a Super Toned BodybyColleen CraigRating: 5 out of 5 stars5/5Save Get On It!: BOSU® Balance Trainer Workouts for Core Strength and a Super Toned Body for later