Brand: WONDER CORE Color: Green Features: ??4 Wheels Stable Workout Equipment for Abs?:NOTE: Please do not use on carpets! Our ab roller machine won US Invention Patent in 2021, Patent No.:11,033,768, Certified by TÜV Rheinland in Germany in 2020, which is designed with four wheels to provide stability and prevent rolling over during workouts, ensuring safety and avoiding injuries. ?? Automatic Rebound Abdominal Wheel?: The abs roller features two-way automatic rebound technology that generates resistance when pushing forward or backward. It also automatically brakes when reaching 5 ft to prevent injuries. Beginners can easily control the roller as it generates power when pulling back. ??3 Workout Modes Abdominal Exercises Wheel?: This abdominal wheel offers three workout modes suitable for people of all ages and fitness levels. You can adjust the resistance devices on both sides for maximum rebound power, turn on one side for less rebound power, or turn off both sides for unassisted rebound exercises. ??Multifunctional Exercise Fitness Equipment?: In addition to supporting abs workouts, this ab roller machine can be used for various exercises like ab tuck, ab roller, lower body exercise, bridge, plank, and more. It offers versatility and allows for a full-body workout. ??SLIDE FIT APP?: Download the "Wonder Core" and "Slide Fit" apps to access an online user manual, fitness guide, exercise analysis, training modes, and unique fitness games for free. Stay motivated and track your progress with these useful tools. ??Best Gift?: It is of no contest when it comes to selecting an ideal gift for your family and friends, not to mention the satisfaction guaranteed after-sales services. Wish you a joyful shopping experience! ??Dimensions?The dimensions of this fitness board: The size of our exercise roller wheels is 11*17.32*4.72 inches when the handle is closed, and the size is 19.3*17.32*4.72 inches when the handle is open. Product weight: 8.38 LB ??Maximum Load?This ab rollers was Certified by TÜV Rheinland in Germany in 2019, the maximum load capacity is 264 LB, which can meet the needs of most fitness enthusiasts. ??Material?Our ab cruncher is composed of the following materials: Mainly metal, plastic(ABS ? PP - NBR). ??Package Contains?The package of this ab trainer contains: 1.SF-31 ab roller X1 (you can download the SLIDE FIT APP); 2.Cushion Mat X1 (not a yoga mat); 3.Product card X1 (you can see the online manual). UPC: 657258983182 EAN: 0657258983182 Package Dimensions: 17.3 x 19.3 x 4.7 inches Listing and template services provided by inkFrog