Let your creativity soar with glass art desk accessories. Glass paper weights have been a celebrated artistic tradition since the early 19th century. Add your name to the lists of accomplished glass artists who work in this tradition with our pyramid mold. This dynamic mold works well with both traditional designs and contemporary styling! Mold is four sided, with 3" wide base at each of the faces and is 3" deep. See size perspective of mold with quarter images shown. A Delphi exclusive. Project shown created by Delphi artist Melanie Churchill. Last image shows the various clear frit sizes to show how air is trapped within each grit size.