Firstly, our “Glass Nail” is made of Borosilicate glass, and it works great in bongs and pipes. Furthermore, when used in nails for dab rigs, though, it misses the mark. Also, glass nails are pretty ubiquitous because they are very cheap. Next, however, glass breaks easily. Glass nails don’t tend to last very long, and they must be replaced frequently. In the long run, you’ll end up paying more. Also, glass isn’t very good at retaining heat, so glass nails don’t always do the job with certain concentrates.
14.5mm to 18.8mm