The strainer measures at 4-1/2 inches in total diameter. The product is made to fit most standard kitchen sink sizes of 3-1/2 inches in the US. Note: Please check the size of your sink and product before purchasing for proper fitment.The kitchen sink drain strainer/ full mesh basket replacement for the 3-1/2" US standard kitchen sink drain. The efficient method of anti-clogging shields to prevent drain clog by catching kitchen waste, food scraps, utensils, or debris particles while letting water flow seamlessly.The strainer basket is designed with high quality stainless steel mesh. Which efficiently allows the basket to catch every particle and waste while allowing water to flow seamlessly.The rustproof stainless steel construction with a spacious basket allow for safe and reliable long-term use. A daily essential item to keep sink drain clean, prevent drain clog, and protect garbage disposal.The deep cup basket design allows for greater space to trap and store a larger particle of kitchen scraps and waste.