Nuvo Iron Round Single Board ACW 60SB - Ornamental Medallion Insert Fence, Gates, Doors Add beauty to your vinyl or wood fence, cupboard doors, gates and sheds with this simple decorative aluminum casting. This affordable accessory is easy to install and offers greater decorative flexibility Insert diameter: 4.5" Item comes in two pieces. Cut-out template included. Cut out hole, then insert one half of insert from one side and the other half from the other side and they connect through the hole. Ideal for 13 to 17 millimetre (1/2" to 11/16") material thickness.