Note: The 8 shape exercise band, color random, not guaranteed to be blue. CORE TRAINING - This Abdominal Wheel is an effective tool for your core strength. It will not only help you improve your AB and lower back strength, but also decrease your risk of muscular injury. WELL CONSTRUCTED - Our AB wheel workout roller is made of high-quality hard plastic and for durability, safety, and load capacity. Our wheel surface was made of high-density rubber, which will not damage the floor. Also, it will not make any noise when you use it. Equipped with foam handles to minimize hand fatigue while maximizing grip comfort and controlling. Free Bonus Gifts and Multi-Directional Ab Core Workout -- The AB roller kit comes with four resistance bands, a knee pad, and Skipping rope. The resistance band can provide resistance on the way out and a controlled return, The combination of resistance rope and push-up support allows your muscles to get the most out of exercise in a short time. the comfortable knee pad can protect your knees from getting hurt.