Sewer Core can be placed directly on the drain, easy to install and remoce Drain Backflow Preventer is made of durable ABS, anti-corrosion, wear-resistant for long time use This Floor Drain Core is suitable for drainer with hole diameter between 35mm and 52mmm Floor Strainer Plug will effectively protect your kitchen, bathroom, garage, basement and toilet from unpleasant smells Floor Strainer Plug can effectively deodorize, bringing a clean and hygienic invironmnet Floor Drain Core is applicable to all diameters of 35-52mm, widely used in hoses in toilets, bathrooms, kitchens, floors, etc., with a wide range of uses. The stainless steel reducing ring, durable, corrosion-resistant, can effectively prevent deformation, which can effectively prevent awful ordor. Features: Floor Drain Core -Color: Blue,Red. -Material: ABS. -Size: 3x4.2x4.2 cm/2.09x1.65x1.65 inch. Large displacement design, flushing more quickly. Package Including 1 x Floor Drain Core