If you're making your own shield or some inconsiderate slob of a foe has bashed and dented the boss on your battle shield and made it unpresentable, here's a shiny new one, pre-drilled for four screws (not included). Made of 18 gauge steel with a 7-1/8" diameter and the bowl is roughly 1-1/4" deep. Suitable for any Viking, Medieval, Roman, Renaissance, or Eastern shield that's not severely curved.