This product comes in three sizes. 2inches:7*7*1.5CM, weight:18g. 2.5inches:8.2*8.2*1.5CM, weight:24g. 3.5inches:11.5*11.5*1.5CM, weight:47g. This drain strainer is used for floor drainage in kitchens or bathrooms,which can prevent hair and vegetable leaves from flowing down and blocking water pipes.