The first step to knowing what to look out for when buying a dab rig kit is to understand what it looks like and what it consists of. A dab rig kit contains a dab rig, a nail, and a blow torch. Some kits also include other accessories. The dab rig is the component used for smoking the concentrates of choice. On the other hand, the blow torch is used to heat the nail while the nail is the part of the rig that heats up.