• 3-IN-1 KIT：1 - Ab Roller wheel for Abdominal exercise, 2 - Push-ups for Arm exercise, 3 - Throw arm device for Prone exercise
• 4-WHEELS System: provide excellent overall rolling motion stability to build your six packs. Perfect fitness system for beginners and advance use challenging difficult variations.
• Comfortable Grips: Ergonomically designed grips prevent discomfort in your hands, so you can give 100% to every workout. Removable handles allow for compact storage and easy transport，fit for men women, and kids
• Unlike other cheap Ab roller, our ab Carving System is built with solid materials to make Durability, PU anti-skid wheels protect wood floor and reduce noise during the workout.
• Two high-quality knee mats are included in the package along with the abdominal wheel so you can finally say "goodbye" to bruised knees. Strengthens and Tones your entire body by hitting your Abs, Core, Torso, Shoulders, Arms, Upper Back & Lower Back.

1. Position the ab roller before your knees. Grab both handles with your hands and extend your arms. 
2. Lean your body forward as you extend your arms, supporting it with the ab roller. 
3. Roll the ab roller as far as you can for maximum distance between hands and knees. 
4. Slowly roll the ab roller back towards your knees. 
5. Place the ab roller wheel on the knee pad. You can carry out push-ups and Tighten screws on the AB wheel. 
6. Remove the screws on the AB wheel, you can carry the arm training.

Size: 16 cm x 13 cm