Feature:1. Can exercise abdominal muscles, slim waist, reduce abdominal fat and other fitness effects, wonderful using effect.2. With strong steel frame structure, soft highdensity foam handle and thick rubber suction cup, convenient to use.3. Strong suction, firm and safe, very comfortable, suitable for home sit up ad and other activities.4. Suitable for home use and no need other tools for installation, just fix it with the suction cup on the flat and seamless floor.5. 4 Gears adjustment design can meet different demands, there are 2 different colors available for you too choose.Specification:Item Type: SitUp AidMaterial: Foam + Polypropylene + rubberGear Adjustment: 4 Gears Application: Suitable for a variety of exercises, great for sit-ups, push-ups, Pilates, stretching, yoga, strength trainingUsage: 1. Preparation before use: Spread the mat (yoga mat) on the ground;Press the sucker switch and fix the curler on a smoothly, seamless floor with the height adjustment clip facing yourself.2. Adjust the height of the foam by adjusting the height of the buckle, so that you can get a comfortable movement position.3. When doing upper limb curl exercise or sit-up exercise, both feet can hook foam respectively.4. Put your feet on the foam so that your waist is close to the ground to protect your lumbar spine while doing the curl..Package List:1 x Base 1 x Frame 2 x Foam