Large bathtub mat 39 x 16 inches will cover the length of most tubs.Features 200 powerful suction cups, ensuring the mat sticks firmly and stays in place.Consists of 176 drain holes drains water out quickly and keep the mat dry and clean.Made of pvc material. Easy to clean Just throw it in the washing machine and let it air dry afterward.Mat only attaches to smooth clean surfaces instead of textured surfaces.Extra Large MatExtra large bathtub mat designed to cover the entire bathtub at 16" x 39" and provide greater safety area. It will fit in most models and sizes of bathtub. This mat is nice looking and comfortable under foot and will work well in homes, gyms, hospitals, hotels, and other living facilities. EASY TO INSTALL - PLEASE CHECK HOW TO SECURE SUCTION CUPS TIGHTLY ON THE SMOOTH BATHTUB 1. Mat only attaches to smooth clean surfaces instead of textured, tiled or non-smooth surfaces. And the bathtub must be clean, without any dirt , smudges, oils. 2. Before filling the tub and start the shower, moisten the tub with a little bit of water, then press the bath mat with your hands to secure suction cups tightly on the smooth bathtub. 7. The bathmat would be immovable when the Installation finished, Repeat the instructions above or press on each suction cup one by one please if the mat still moved. Suction Cup Design & Skid Resistant The powerful suction cup array keeps the mat firmly attached to the bathtub or shower floor. The grip is so strong that the mat doesn't slide at all once you have it suctioned down. However, it will pull up easily when it is time to clean. Subtle textured pattern on the its surfaces increase friction and slip resistance.And the liquid soap, shampoo, and conditioners won't make the surface slick. Note: Hang it up to dry after every use and periodical cleaning with detergent is advisable. Comfortable & Safe Provide a comfortable and anti-slip surface to keep you balanced while cleaning up. With holes for water flow, this mat will not inhibit you at all while you are using it. User-friendly Angle Art design fits the bathtub drain outlet for faster drainage and increases the anti-slip area. Soft & Durable Made of high quality PVC material which is soft, durable and not easily deformed. For bath safety, it would be a long-term solution to your bath needs.