The Titan bowl from Ace-Labz is the ultimate solution for anyone who has clumsy friends, or if you yourself are a bit of a butter finger. These single hole martini style bowls are made of aircraft-grade anodized aluminum. These 14mm metal bowls will never break and fit perfectly in glass or silicone bongs. Titan bowls work perfectly with the unbreakable Titan 3.0 Downstem.