[Relax Massage Tool]As a powerful relaxation muscle massage ball,it can rolls smoothly over the skin,and can alleviates tight muscles almost instantly;the 360 degree spin design can be used anywhere on the body you can reach, you will feel comfortable due to friction, can promote your blood circulation. [Cold/Ice Therapy Massage]Place it in freezer for 2-3 hours, then use it to gently massaging on the area you wanted first, make sure to keep massaging in a slow, circular motion to avoid staying in one place too long, cold / ice massage can provide a significant relief for many types of muscle pain, calm down inflammation caused by muscle strains and accelerate recovery. [Easy To Use]This massage ball roller has a small opening on the bottom so you can use your favorite oils or lotions on the massage ball. Only need 1 to 3 drops of your favorite oil or just a few drops of lotion, when you roll the the ball, oil will come out onto the ball and onto your skin ,You can have a light massage or deep one,depends on what you are trying to do. [Easy-Grip Design]You can easily have an continuous full body massage even on the go, just simply press on muscle then rolling back and forth. All the pressure is controlled on your own, you can press harder for a deeper massage or just lightly, depending on how you like to have your massage. [Versatile Massage Ball of Multidirectional Movements]It can be used for pre-workout and post-workout recovery, promoting relaxation, self-myofascial release, alleviating muscle stress, release tight muscle knots, trigger point therapy and to improve flexibility.