It can relieve stress and relax muscles, but it should not be used for too long. I suggest you don't buy casually advertised products yet. If you want to buy a product that knows a certain brand first, it is more expensive than a cheap and useless product. Is it dolphin-shaped? The online price is around 50 yuan. I bought it before. If it is dolphin-shaped, as I said, I can consider buying it.

If you don't overuse it, you won't relax your muscles and lose weight.