The Peanut Massage Roller is convenient and effective:Whenever you feel muscle soreness, you can use a massage ball to massage anytime and anywhere, and witness the gradual relief and relaxation effect they can provide. You can roll back and forth by leaning or pressing on the Peanut Massage Ball to stretch and release the fascia and muscles, as well as relieve muscle soreness. It is easy to clean with a damp towel or water after each use.