Outside diameter 9 cm(3.54) x H 3.4 cm(1.34),Inside diameter : 4.2 cm(1.65). Good bathroom drain hair catcher. Awesome kitchen and sink item. Simple and small design. Allows to be cleaned easily without hassles. Stainless Steel Sink Strainer, Perfect for Kitchen Sink Bathroom Bathtub Wash basin Floor drain balcony Drain Hole, Utility. 3.74 Top diameter, Also comes with metal flat rim to fit over sinks drain, At the same time can intercept hair, food bits, debris. long lasting protection against drainage clogging. Great for American families small kitchen and bathroom sinks. MONEY BACK GUARANTEE: We think youre going to love this Sink Strainer as much as we do But in case you dont, you are covered by our 30 days, no questions asked, money back guarantee. We want our customers to be 100% happy.Simple and small design 3.54 Top diameter, Also comes with metal flat rim for reliable, rust-free service. Allows to be cleaned easily without hassles Easy wash with warm soapy water to keep the mirror finish shine impeccable over time. Dishwasher safe. Long lasting protection against drainage clogging Water flows through freely while it catches unwanted food bits and debris, Keeps objects out of drains and prevents clogs.