Walmart has these Adjustable Dumbbell Set Weights 66 lbs for only $48.99 Shipped! (Reg. $70) This high quality dumbbell set is made of concrete weight plates and chrome finish bar. It comes with different sizes weight plates for you to adjust to your desirable dumbbell weight. This weight plate set features with 2 pairs of spinlock collars and non-slip grip to provide you a safe and secure exercise experience.