Don't shake it. Don't stir it. But do smoke it, and be sure to fill it with only top-shelf flower. GRAV Martini Glass bubbler is deceptively sleek. Expect potent, expansive hits filtered smooth by a unique, custom-fitted perc.

• 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