Libbey Picadilly 12oz Rocks Tumbler

Libbey – Piccadilly
It may be tulip shaped, but there´s nothing delicate about Picadilly with the added strength of Libbey Duratuff.
DuraTuff® – Libbey’s DuraTuff® treatment is a super strengthening thermal after-process for “pressed” tumblers and stemware.
The DuraTuff process is only performed on the upper third of the glass, which increases its resistance to thermal and mechanical shock. By treating this upper portion at a lower temperature than tempering, you put less stress on the glass. This has a positive effect on how the glass breaks and also improves its overall durability.