New Ab Roller Wheel W/ Knee Mat & Timer, Automatic Rebound Abdominal Exercise Roller W/ Elbow Support

Brand: BersaujiColor: BlackMaterial: Alloy Steel, PlasticItem Weight: 3.31 PoundsStyle: SportsMaximum Weight Recommendation: 400 PoundsProduct Dimensions: 15.77"L x 6.69"W x 5.91"HManufacturer: BersaujiUPC: 748661318675【Abdominal exercise machine / flat support machine in one】Scientific force, automatic rebound, easy to use. Five layers of anti-slip materials, anti-noise and wear-resistant: anti-slip layer, reinforcement layer, shock absorption layer, noise reduction layer, support layer.【AUTOMATIC REBOUND DESIGN】Our ab roller with automatic rebound technology, automatic steel rebound intelligent auxiliary brake, built-in brake system, steel rebound more smoothly.【DOUBLE WHEEL DESIGN】This exercise abs roller has a wider front and back two wheels for smooth rolling and better control. It helps you work out every muscle and in your core and at the same time provides safer control of your body, especially for beginners.【EXCELLENT WORKMANSHIP】This rebounding roller is made of stable, eco-f