21" X 3/4" Half Round High Alumina Kiln Shelf CLAY SAMPLES The black plastic strapping around

The black plastic strapping around the shelves should be removed

The G 4209 is a full 42" wide

and always has been the most popular size for the individual ceramic artist

Larger professional slip casting studios will usually want to choose from the more robust "Slip-o-Matic" line

GR Pottery Forms Drape Mold 8X13 Rectangle

21" X 3/4" Half Round High Alumina Kiln Shelf CLAY SAMPLES The black plastic strapping aroundSPECTRUM HIGH ALUMINA KILN SHELVES 21" x 3 4" Half Round High Alumina Kiln Shelf for 10 sided 23" kilns with 2. 5" brick Spectrum High Alumina Kiln Shelves are excellent for electric kilns and gas kilns. The clay body used has a much higher amount of alumina than regular coredierite shelves. Alumina makes it more refractory or resistant to high temperatures. They are rated to cone 11. They are pressed into molds rather than cast. This compression