Denver & Liely Agave Glass The Agave Glass is the result of Denver & Liely’s longest-running research, design and development project in the companies history. 2 years on the ground aiming to understand the wild beast that is agave. Hand-blown, hand-cut and hand-polished lead-free crystal. Engineered to perfection by engineers – Denver & Liely. It is simply the best possible, highest performance agave spirits glass in the world. That’s what 2 years of research does.    . For adults of legal drinking age. Please drink responsibly.