Bullseye's Tekta glass is the ultimate clear sheet glass for kilnforming. This glass is clean, uniform, flat, affordable. Each sheet has four trimmed edges, and is an ideal base or cap glass for art or architecture. Make Tekta your new clear base glass. Tekta is manufactured on it's own production line at the Bullseye Glass Co. factory in Portland Oregon, where the production is carefully monitored to insure that the glass is formed, tested, and packaged to the highest possible standards.