Set of 4 resistance exercise equipment bars for strengthening elbow, wrist, forearm, and hand muscles at home, the gym or the office Promotes muscle enhancement for athletes, artists, musicians, and more Supports physical therapy for issues such as golfers elbow and tennis elbow Solid core and TPR exterior that offers durability, shock-absorption and a comfortable non-slip grip Color-coded wrist exerciser flex bars in 2.7kg, 4.5kg, 6.8kg, 11.3kg weights