Get your ideal body shape at home! Good addition to home gym Perfect training equipment for beginners and intermediate- level users, sturdy and solid fitness equipment with 4 wheels 360°range of motion,wide varieties of moves for squat, crunches, and other abs workout. Allows you to target different areas of your abs The 11.4 x 11.4 x 3.3 inch, 1.98 pound abs trainer is small enough to store and carry around easily Installation Method: 1.After opening the package, check if the parts are missing 2.Align the plunging rods of the four wheels with the four round holes at the bottom of the disc 3.Press down on the belly wheel with the weight of the body. When the plunger touches the bottom, stop the force and ensure that the four wheels are firmly installed 4.Knee mat can be placed on the ground or directly on the belly wheel Ab Wheel Roller for Home Gym Exercise wheels Roller for ABS Workout, Home Abdominal Exercise Equipment Core Workout Machine, Ab Wheel Roller with Knee Pad for Men & Women Compare to traditional fitness equipment, slide coaster has a wide variety of exercises such as moves for squat, crunches, and other abs workout. Allows users to target different areas of abs. There are 4 AB wheels/rollers that can roll 360 degrees, you can enhance your core, strengthen your abdominal muscles and the whole body 4 wheels are stable support, safe rebound, rolling are more stable, abdominal wheel has wide and thick bearing roller, good elasticity, wear resistance, pressure resistance and no noise High quality materials and strong structure,the core fitness equipment has good bearing capacity and can support 440 pounds. Read more The slide coaster works well in abdominal exercise. Your entire core, which includes your External oblique muscle, Rectus abdominious muscle, Upper arm muscles obliques, lower back, hips and the deeper layers of core musculature, all get strong hits during rollout exercises. Core Abdominal Exercise Home Gym Strength Workouts Read more Specification： Commodity type: Multifunctional abdominal exercise wheels Product weight: 0.9kg Size: 13.4x13.4x3.3inch Maximum load: 440 pounds What you get : 1x disc 4x wheel 1x Knee mat