Automatic Rebound Abdominal Wheel: Enjoy efficient and controlled movement with the easy-slip automatic rebound technology of the exercise roller wheel for a more intense workout experience. Avoid injuries and protect your arms, neck, and spine with theelbow supports and curved handles of the durable ABS, metal, and sponge material construction. Practical Two-wheel Design: The two-wheel can prevent the wheel from slipping in a smooth motion. Unlike other two-wheel AB rollers, we have added thickened rubber tracks to the wheels to reduce friction on the floor, which is quieter and not hurt thefloor. Workout Your Whole Body: Widened double wheel, triangular structure, stable and safe and ergonomic. The double spring strong rebound design enhances the strength and clarity of your abdominal muscles, back, arms, chest, and shoulder muscles. Automatic Rebound Design: The automatic rebound abdominal wheel is designed with easy-glide automatic rebound technology, added thickened rubber tracks to the wheels reducing wheel swing and helping you control your exercise, Automatic rebound functionand thick foam handles can protect you from injury during exercise. Make your fitness more efficient. Efficient Exercise Equipment: High-tensile steel core don't worry to bear your weight(200kg load bearing). Unlike some bulky equipment, such as dumbbell, fitness machines, this roller is small, handle is easy to remove or install, making it more convenientto carry. Easy to use, very suitable for beginners and advanced.