Product name: Sink overflow head. Make sure the sink overflow opening is about 28-30mm. Material: Made of ABS plastic material with 304 stainless steel finish. Good adhesion, uniform color, good corrosion resistance, to ensure that the surface maintains luster. Round interface: 41 x 41 mm, can be used in kitchen, bathroom, etc. Easy to install: Just insert it into the opening and snap it into place,no tools are needed and the sink will not scratch. Tips: Please check the size if what you need before you buy. Shape Round Material ABS, 304 stainless steel Interface size 41x41mm Fit for Sink Overflow Opening Size 28-30mm Type Sink Overflow Head Brand Unbranded/Generic MPN TJ4894670924966 EAN 4894670924966 .