Turn any stockpot into a canner. Ideal for small batches it holds 2 quarts, 4 half pints or 4 one pint canning jars. The purpose is to elevate the jars off the direct heat, so the hot water circulates freely around the jars. The contoured, comfort grip handles can rest on the pot rims. A hard to find item in the stores. Measures 8.25 in diameter.