Hand Glazed Prickly Pear Tile. The background is left unglazed to let the matte Terra Cotta show through. Great to buy in pairs for use as Casserole trivets or as a decorative piece. All tiles come cork backed so they will not scratch your tables. A hole has been provided at the top of the backing for easy hanging. Each tile is hand glazed, no two are alike and glaze variations are to be expected.