Features: The large opening structure makes drainage faster and more efficient, avoiding water accumulation. Use 304 stainless steels and ABS filter screen to ensure corrosion resistance and durability. The unique sealing design effectively isolates odor pollution and keep the air in the bathroom freshly. The simple disassembly design makes cleaning and maintenance easily without the need for professional tool. Suitable for basins diameters of 7.6-8.8cm/apertures of 33-40mm, it have strong adaptability and can almost meet various basins needs. Specifications: Component: 304 Stainless steels and ABS Size: about 6.2x4.3cm/2.44x1.69inch Suitable for: 7.6-8.8cm basins diameter/33-40mm hole diameter Package Includes: 1pc basins Drain stoppers note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.