A quartz, ceramic, or titanium insert that is an integral part of a dab rig used to vaporize cannabis concentrates. Sometimes called a spike, the nail is heated by a hand torch or electric coil to a temperature at which it is able to vaporize concentrates that are applied to its surface. This process is referred to as dabbing. A nail can be fitted inside a dome in which the vapor gets trapped, or nails can be domeless with holes that provide for smoother air flow.
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