This behemoth of a bong is extremely durable while having amazing function. Joints can be the most fragile part of a bong, but this one has thick glass throughout and a Dewar's joint for added support. The flared mouthpiece is an astonishing 13mm thick yet still provides a comfortable, airtight seal while you inhale. The 5" wide base also has close to a 13mm thick base to give you a reliable stand for wherever you put your bong down. This bong is strong from every angle, including its percs.