Usage Tips:Product Description2 IN 1 Bathroom Sink Stopper One unit, dual function. Simply push down the button to stop the water, push again to drain the water and catch hair. Its more convenient than other rubber bathroom sink stoppers with a single function. materialMade from the top-quality brass, steel and plastic to ensure that it stays durable and doesn't break easy.Double ProtectionIt also has an anti-clogging basket inside that can prevent the sewer from being stuck, neatly collects hairs and prevents the drain from clogging up. This will prevent the drain from accumulating any unnecessary veggies and dirt that could lead to more work in the future.Easy to installYou only need to take out the old O-ring, put the Kitchen Sink Drain Stopper to the Drain Hole. No need for a plumber or any tools.Fit Most Bathroom Sink Drain Opening The bathroom sink strainer fits 99% US standard bathroom sink drain whose diameter is from 1.18inches(3cm) to 1.57 inches(4cm).Features:1.Universal 2 in 12.Pop up Sink Strainer3.Double Protection4.Easy to installSpecifications:Name: Ea-Zy Sink PlugMaterial: Top-Quality Brass, Steel and Plastic.Package Includes:Model A : Copper Core Sink Plug/Model B : Plastic Core Sink PlugNote:Due to manual measurement, lighting shooting reasons and the real thing will be slightly different, please understand.