The material of the bathtub determines its performance, so pay special attention to its material before buying.
You can touch the surface of the bathtub with your hands to see if it is smooth; you must also tap the bathtub with your hands to judge the thickness of the bathtub; and whether the bathtub is firm, you need to press vigorously with your hands and step on it with your feet. All this requires the buyer's personal judgment. In addition, you must "test the water" when buying a bathtub, especially if you buy a jacuzzi. If the sound of the motor is too loud, it will not let people completely relax when taking a bath, which will bring a certain burden to people's spirits.
