Durable: The drain plug is made of high-quality silicone to prevent rust, corrosion, and limescale buildup. It is flexible, lightweight, and does not deform easily. Stability: Each filter has four suction cups that keep it stable and prevent it from moving easily. The drain holes in the drain cover are clean and tight, allowing water to drain very quickly. The drain plug measures 14 x 14 cm (5.5 x 5.5 inches) and can therefore only be used on drains smaller than this size. Easy to clean and install. Silicone drain strainers with suction cups are very easy to clean by simply washing them in warm, soapy water. However, they can only be used on smooth tile or glass surfaces and are not suitable for matte or uneven surfaces. APPLICATIONS. Suitable for all types of drains, can be used in bathtubs and kitchen drains, easily catches food scraps, hair, and other debris while draining, as well as any residue you want to avoid and capture for smoother drainage.