AHRENS CHIMNEY TECHNIQUE INC. Victorian Crown Forms Kit 5 ft. x4 ft. Case Of 6 There's no need for creating a chimney crown to be difficult. With this Ahrens Victorian Chimney Crown Form Kit you can easily create 3.5-inch-deep crowns with built-in drip edges and two inches of overhang. This kit includes six reusable styrofoam crown form sides, a cardboard cutting template, support wires, and straightforward instructions. Allows easy creation of chimney crowns Provide for 3.5 in. of concrete Built-in drip edge 2 in. overhang reduces freeze/thaw damage Can withstand multiple uses Kit includes: six 5 ft.4 in. styrofoam form sides. one cardboard template for 45º cutting. support wires easy-to-follow instructions.