This bathtub mat is made of upgraded high quality PVC material. It feels comfortable on your feet and has no pungent odor. It is gentle and healthy for you and your family's skin. The shower mat is composed of 0.9 inches/2.3 cm powerful large suction cups. We have upgraded the suction cups to ensure maximum safety while you shower. In addition, the frosted texture makes the surface of the mat more non-slip. Our thick bathroom mat is sturdy and durable, soft and flexible. This makes it less likely to be damaged or deformed. Moreover, those convex circles with massage function can relieve your whole day's fatigue. There is no doubt that it is an ideal choice for bathtub or shower room.