SIZE & PACKAGE: The outside and inside diameter of this sink strainer are 7.5 cm and 4.5 cm. Set of 8 pieces to meet the filtration needs of most sinks in the household. MATERIAL: The shower hair catcher is made of stainless steel, rust-resistant, durable, and not easily deformed. Smoothly polished with a refined surface and edge, it can support body weight during use. The weighted design enhances grip to prevent movement under water flow. ANTI-CLOG DESIGN: The shower drain cover features a flat edge design, positioned lower than the sink outlet. It includes 10 large drainage holes (4 mm) and 64 small holes (3 mm). The dense hole pattern effectively captures small debris, food scraps, and hair while allowing fast water drainage. EASY TO USE & LOW MAINTENANCE: Place the sink strainer into the drain. After use, simply remove the trapped debris and rinse the strainer under warm water or clean in the dishwasher to maintain its shine. A TIDY HOME FOR YOU: This drain hair trap helps prevent clogs, reduces unpleasant odors, and blocks insects from emerging through the drain. It can also be used as a tea strainer or for rinsing rice and beans.