Coaster Holder, Black Wrought Iron, Square, Single pronged corners, fits (4) 4" tiles (not included, any will fit). E6000 is the recommended adhesive. Match kitchen items: aprons, cutting boards, coasters and trays, sold separately.Tiles that fit: Ironclad TilePremiere TileBison TileDyeTrans Value TileWrought iron is easily bent and moved, some pieces may need to be adjusted if they bend in transit and they may vary in exact dimensions.