[Note: Kiln furniture is brought in on a per-order basis. Please allow approximately 1 month lead time. If shipping, shipping will be calculated and charged separately.]
 
Manufactured of a high alumina mullite/cordierite mixture that yields a smooth, durable surface with good thermal shock resistance for stacking ware in your kiln. Recommended for all temperatures up to cone 11.
21" (533 mm) diameter, 3/4" (19 mm) thick. 
This is the recommended size for 10-sided top-loading kilns like Euclid's R-153 or R-200.