Investment plaster ring plugs, from size US 4 to 12.5, are great for firing metal clay rings. Craft your perfect ring with these investment plaster plugs, available in a wide range of sizes to suit any project.
Half set includes 54 plugs total; 6 plugs of 9 half-sizes OR 6 plugs of 9 whole sizes.
Full set includes 108 plugs total; 6 plugs of 9 half-sizes AND 6 plugs of 9 whole sizes.