Libbey's SheerRim/D.T.E.® (Dura Temp Edge) Stemware and tumblers feature a beadless edge which is first cracked-off then polished to produce a fine, yet durable edge. This creates a combination of elegance and affordability in glassware for operators looking to upgrade their beverage service, while still maintaining longer service life. Sheer Rim/D.T.E.® Tumblers and Stemware are guaranteed against chippage of the rim.