4FITPRO Lacrosse Balls  with Carry Bag, Set of 2 (Orange and Blue) EFFECTIVE/SAFE PAIN RELIEF: Great way to target area, specific muscles to relieve tightness, stress and muscle knots. HUGE HELP WITH MOBILITY ISSUES: perfect for physical therapy aid treatment of injuries and prevent them from occurring in the future THEY ARE TOTALLY WORTH: They are dense yet with a soft exterior surface making it easy to work with. You can also use these on someone else while giving a massage and save your hands from digging into muscles that can be hard to get to release at times. PERFECT SIZE: fit on hand and you Can roll out to your feet or against wall for your shoulder your tight neck or use for various areas including back, legs. EASY TO CLEAN: they are completely washable just with soap and water.