2PCS Fitness Power Exercise Push Up Bar 1.The Push Up Bars are a great tool to develop your upper body strength. 2.The muscle groups that are primarily used are the pectorals (chest) and triceps (back of arms). 3.designed to help people build a strong upper body and core, increases effectiveness of push ups 4.Push up workouts, relieves unnecessary stress from wrist and forearms, allows you to dip lower for a more complete arm, chest, shoulder, and back workout 5.ABS main material