Quartz is a great medium for domeless nails, it heats up quick and doesn't change the flavor profile of your vape material.
Its much stronger than glass and won't crack due to thermal shock like glass. Because it heats up quickly, quartz also doesn't retain heat well.
This means that you can't keep the nail in the same temp range for very long. This makes taking longer low temp dabs very difficult on a regular quartz nail. Enter the 4mm, this upgraded version of a club banger features super thick walls 4mm which means you can retain the heat much longer than your standard 1.5mm banger. Due to the thickness of this nail, it will take a bit longer to heat up than your standard nail.