This kit includes the basic kiln furniture and supplies for silver clay firing. Items included are a 7" x 7" x 1/2" hard ceramic kiln shelf, a set of 4 1" high kiln posts, a 6" x 6" x 1" fiber blanket, and a package of 3 pieces of 3/32" Thinfire paper. The hard ceramic kiln shelf and the kiln posts will last for many years and hundreds of firings. The fiber blanket and the Thinfire paper degrade with each firing, and will last from 1 to 3 firings depending on the temperature and firing time.