Enhance your cardio workout and core strength with the BOSU 2-Pack Balance Ball Trainer. This home use balance pod is made of durable rubber and has a grip surface for added stability. The blue ball is 6.5 inches wide and weighs 1 pound, while the maximum user weight is 250 pounds. Perfect for gym and training activities, the BOSU Balance Ball Trainer is designed to work all muscle groups and is ideal for users of all fitness levels. Its features include a rubber grip and a sturdy construction, making it a reliable and long-lasting addition to your fitness equipment. Get ready to improve your balance and stability with this top-quality balance ball trainer from BOSU.