Don't shake it. Don't stir it. But do smoke it, and be sure to fill it with only top-shelf flower. Our Martini Glass bubbler is deceptively sleek. Expect potent, expansive hits filtered smooth by a unique, custom-fitted perc. Part of the new GRAV sip series Stands 4.5" tall at the top of the main chamber, 7" tall at the top of the straw. 14mm female joint. Comes with a 14mm cup bowl. Features a broad swiss-hole perc