THE AB WHEEL ROLLER
The AB WHEEL is effective if you consistently use the proper form when working the wheel! Combine it with other exercises that target your core, and eat a healthy, balanced diet. ... This piece of equipment can also help strengthen your lower back and overall core muscles
10 MINUTES A DAY
Girls can use this exercise to have thin arms, breast enlargement, thin waist, abdomen, lifting leg lines, firming buttocks
6 levels of force
Boys can use this exercise to have eight pack abs, arm muscle lines, latissimus dorsi, firming buttocks.