A dab rig is a specialized device used for consuming concentrated forms of cannabis, known as dabs. It typically consists of a water pipe, similar to a bong, but is designed to vaporize concentrates like wax or shatter. Users heat a small surface, called a nail, with a torch and then apply the concentrate, producing vapor that is inhaled through the rig. Dab rigs come in various sizes and designs, often made from glass for better flavor and visibility. They may include features like percolators for smoother hits and can be used with accessories such as carb caps to enhance the vaping experience.