A oint physi apy massage ball, deep tissue muscle relaxation instrument, outdoor arm and shoulder massager The product is shipped based on the color or size of the main image of the product page. A oint physi apy massage ball, deep tissue muscle relaxation instrument, outdoor arm and shoulder massager Product advantage: It increases your concentration by continuously rotating in the palm of the hand and using the soft ASMR sound to give a certain massage effect the pressure of life: built-in high-quality bearings, gears push around the ball, so that every time the massage ball rotates, there will be a pleasant "click" sound, which not only relieves people's pressure, but also makes the click sound pleasant and helps reduce Stress and anxiety from all sides. Use these balls in conjunction with physical therapy equipment or as a device to relieve neck pain. Relieve sciatica and fibromyalgia, reduce stress. protruding design: The protruding edge of the surface is designed for massage. It is small in size and light in weight. It is suitable for massaging hands, , shoulders and neck. The edge will stimulate the a uncture points on the body and help increase circulation. relieve fatigue -function: -piece massage ball spinning top is an addictive one-piece massage ball. It is not just a toy, but a gadget that can help improve concentration. Simple and repetitive actions will slowly leave the game behind , Put aside your troublesEasy to carry: The set includes 2 treatment balls. They are installed in their own storage box, a portable a ressure device, and two massage balls are connected together to prevent loss. No matter where you are, you can easily carry them Take them on vacation, to the gym, to the office, etc.