General sizeThe drain holes can be used between 30mm and 52mm, suitable for 99% of the drain holes, and can be used for the drainage of different types of sinks. Note: measure the hole of evacuation before purchase. Premium Solid MaterialThis drain auger is made of premium stainless steel and thick brass, careful material selection, wear-resistant, corrosion-resistant and rust-resistant, sturdy and durable and don't cut not the corners. Built-in strainerUnlike conventional drainers, this drainer has multiple anti-clog baskets that can prevent hair, rings, kitchen scraps and other items from falling into the drain pipe to prevent clogs and it is very convenient to clean the dirt. Jump valveBuilt-in thick spring, thick and firm, not deformed. Multi-layer sealing ring, no water leakage. Sealing the rebound, the rebound does not stick, and the pressure is finer. Quick InstallationNo tools required for installation, just remove the old drain screw. Then insert the new rebound core and it can be used normally. It is also very practical if you want to clean the bouncing core. Just lift the jump core to clean it. New design, widely used, the flush plug has been optimized and improved on the basis of ordinary drain pipes, and the choice of sizes is wider. It is suitable for most families.