It can be adjusted to the thickness of the glass plate.Fit for the glass shelf of bathroom. Also suitable for hotels,hair salons,toilets,dressers,salons,public places etc.The is rust-proof. You just need to pay attention to the screws,which will not damage the alloy when screwed inIt may start to rust after a period of use.Easy to Assemble: The fixer must be drilled,otherwise it will not be fixed. You only need to drill a hole at the seam of the tiles or elsewhere,then clamp the glasses by turning the screw from below.colour:SilverMaterial:Zinc alloysize:20 x 20 x 17mmPackage Contents:12 x Glass ClampOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.