Create stunning pieces with this mould It has just enough curve that a finished piece will stand on its edge, providing a canvas for any scene you can imagine. This high-quality, stainless steel mould measures 33cm in length by 20cm in width. See size perspective of mould with quarter images shown. Turn your fused glass project into 3D projects with this slumping mould. See projects above for inspiration Experts Recommend Stainless Steel: "In many ways, stainless steel is the perfect mould material. It is lightweight, difficult to deform, and able to last for a thousand firings or more." - Brad Walker, Contemporary Warm Glass Flag created by Delphi Artist Brooke Groff. Glass fish created by Poppy Mussallem. with the S-Curve mould.