Filter: 4 black bottom holes, size is 14 x 14 cm. The built-in suction cup can be easily attached to smooth surfaces, helping to catch hair, food scraps, and other debris, preventing clogging of water pipes. Material: Made of high-quality silicone, this product is durable, resistant to rust, lightweight, soft, and not easily deformed. Suitable for smooth tile or glass surfaces, not for matte or uneven surfaces. Suction cup design: Each filter has a suction cup base at each corner, ensuring a firm grip on the surface and preventing slipping. Please note it is not suitable for matte or uneven surfaces. Use: This silicone floor drain is suitable for kitchen sinks, bathroom sinks, and bathtub drains. It helps collect leftover food, hair, and other small debris while allowing smooth water flow. Reusable: Easy to clean, simply wash with soap and it will look like new. You can reposition it as needed, promoting environmental protection and hygiene.