The Square Rim Plate Collection is very unique. So many people want to stray from the ordinary Round Bisque Plate and want to go with Funky Square Designs. You can design your own set with all the different sizes of Square Rim Plates that we have. Check these plates out. #267, the Square Rim Bowl matches this collection quite nicely! The Rim Square Plate can be used for slumping glass. Recommended Blank Size: 11" square. Range: 9" - 11" square.