【Revolutionary Automatic Rebound Design】Our ab roller features intelligent auxiliary brakes and a built-in brake system for smoother, more controlled steel rebound. 【Double Wheel Design】Widened to 100MM double wheels, smooth rolling and better control, making it perfect for beginners and experts alike. 【Ab Roller with Elbow Support】Upgraded ab roller with elbow support design provides enhanced stability during workouts, reducing lateral movement and preventing arm compensation 【Premium Quality and Silent Operation】Made of eco-friendly plastic with non-slip, sweat-absorbent sponge grips that won't scratch floors or make noise. 【Sculpt Your Perfect Body】Burn fat faster and sculpt your 6-pack with this amazing abs roller kit. Designed to tone your mind and body, so you can feel stronger, more confident, and shine from the inside out.