Oil rigs, commonly known as wax rigs or dab rigs, are primarily used for smoking concentrates and oils. The purpose of a dab rig is to offer the smoker with a better smoking experience when dealing with concentrates. This is done by minimizing harsh hits and increasing vapor production. An oil rig has many similarities compared to traditional bongs. Some of these similarities may include multiple percolators & customizable attachments. There are various selections of upgrades that can be made to further customize an oil rig such as adding a ceramic, quartz, or titanium nails and bangers.