[Professional Textured Massage Ball] - The surface of our power peanut massager is designed to have different surface textures to help in Releasing Muscle Tension, Target Trigger Points, Stimulate Tissues that are directly beneath the skin, Improve Blood Flow, and to improve Skin Elasticity. The textured surface also helps the vibrating peanut ball to have a better grip and and to avoid it from slipping. [Perfect Shape Massager for your Body] - This vibrating massage ball can be used to any part of your body! Not just to the muscles and ligaments located in your Arms, Legs, Glute, Feet and Back. Since it is designed to have a peanut shape, it is also a perfect massager tool to massage your Neck, Shoulder, and even the muscles near your Spine. A very versatile all around pain relief massager. [Adjustable 4 Massaging Modes] - Our vibrating double lacrosse balls uses high end powerful motor with 4 different massaging mode: 1.Low, 2.Medium, 3.High, and 4.Alternate Low, Medium and High. It has 3 light indicators that represent 1.Low, 2.Medium, 3.High, that can be seen near the power button. Low-Medium level is perfect while doing yoga, muscle recovery therapy, and for elderly people. Medium-High level is perfect for losing muscle knots, muscle spasms, and if you're doing heavy workouts. [Portable Waterproof Rechargeable Massager] - This electric double lacrosse ball is designed to have waterproof surface, so you can use it even if you're covered with sweats. It's also equipped with a long lasting rechargeable battery so you can bring and use it anywhere, with it's size of 7x3.5x3.5 inches, it could definitely be easily placed even inside of your gym bag!