The drain cover filter has a wide range of uses, and it is often used in general households. Mainly used in shower rooms, kitchens, balconies, floors, etc. Installation type: No Screw Inserts Material: 304 Stainless Steel Thickness: 1.8mm Diameter: 3 3/4 inch (95mm) O.D.3-3/4"Inch (95mm) square Shower Drainer Cover Replacement This Shower Drain Cover is Made of Premium Grade (5mm) 304 Stainless Steel, Thick enough, Avoid Deformation. Pls Measure before Purchase (Outer Diameter and Screw Hole to Hole).This floor dariner cover is No Screw Inserts Pls Measure before Purchase (Outer Diameter and Screw Hole to Hole).This floor dariner cover is Screw-in Type , NOT SNAP-IN TYPE.