Quartz bangers provides many benefits over conventional dome+nails. All of our bangers features big buckets for your fat dabs. 4mm thickness retain heat better and longer than 2mm/3mm. The 45 degree neck reduces the exposure of heat stress on your rig and allows you to use it on an angled joint with ease. The banger also helps keeps your rig clean and prevents excess oil from dripping into your rig. 100% USA quality quartz.