Whether it’s post-workout or just the workout of everyday life, sore, aching muscles affect your mobility and happiness. Recover better with revolutionary cold therapy and portable relief. Accelerate recovery with pain-relieving cryotherapy by promoting blood stimulation and lymphatic fluid movement to tired, sore, and aching muscles. The stainless steel ball rolls smoothly while the easy-grip handle keeps you in control. Simply place it in the freezer to activate. Stays cold for up to 3 hours for extended treatment. Use chilled or at room temperature. Perfect to toss in your gym bag for on-the-go relief without awkward wires or adapters. Simply roll harder for a deeper, more penetrating massage or ease up on pressure for a lighter massage. Treat tension anywhere on the body. Effectively combats soreness post-workout. Reduces inflammation and improves blood circulation.