Material: Allergen-free vinyl material, odorless, antibacterial, and mildew resistant. 【Safety】Even if you get hot water in the bathtub, the 200 suction cups stick firmly to the floor and prevent slipping, making it safe for the elderly and children. [Features] The round stone design makes it comfortable to step on with your feet, and it does not hurt even when you sit, and it also has a massage effect. Size: 39.4 x 15.7 inches (100 x 40 cm) in size, so you can use it inside a large bathtub. (Maintenance) After enjoying the bath, you can wash it in the shower and wash it thoroughly.