Extra Large SizeThe large 40"L x 16"W bath mat will almost completely cover your bathtub or shower stall in homes, gyms, hospitals, hotels and other living areas and will feel great on the feet. Heavy-duty suction cupsThis bath mat features 200 powerful suction cups that keep the mat sticks well and stays on smooth surfaces. Good drainageA total of 176 drainage holes (including 12 super drainage holes) drains water quickly and keeps the mat dry and clean. High quality materialMade of eco-friendly, durable and safe material, BPA free, latex free and no toxic odor. It is safe and gentle on the skin. Machine washable and easy to clean Simply throw it in the washing machine and let it air dry. Good to knowThe mat only attaches to smooth, clean surfaces instead of textured, tiled or not smooth.To prevent falling, moisten the bathtub with a little water before filling the bathtub mat, then press the bath mat with your hands to firmly fix the suction cups on the smooth bathtub. li>