Universal Flexible Installation Collars makes installing your fire pit pan a breeze. With these flexible collars, you're guaranteed to have them fit perfectly within your fire pit enclosure - just anchor them into the walls of your enclosure, just under the top level for an easy 'drop-in' installation. These collars measure 19" x 2" x 1.625" and can be cut to fit the specific size of your enclosure, and flex to easily fit round, square, or other shaped enclosures. The collars also make the valve box or gas valve easy to access and are designed for use with any fire pit kit that includes a fire pit pan. NOTE: Each package contains one collar. Your fire pit will require multiple collars depending on the size of the enclosure.