This Super Thick Beaker Bong is made from THICK scientific glass. No really this thing is so heavy you could use it for self defense if you needed to. This clear glass bong can hold up to everyday use and smoking. The flared mouth piece is about 2.5 inches wide and gives an airtight seal when you smoke. This bong also includes a 3 pinch ice catcher so you can add ice cubes for a ice cold hit. This bong includes a removable diffused downstem that fits into the 18mm female joint, and comes with a matching 14mm male dry herb bowl. The diffused downstem does an excellent job of diffusion your smoking for an enjoyable smoking session.