A dab rig is a type of bong designed to consume wax concentrates or "dabs". When choosing a dab rig, consider factors such as the style (classic, mini dab rigs, nectar collector, electric dab rigs), the material it's made of (glass or silicone), and its percs, which diffuse and filter smoke. Silicone rigs are virtually unbreakable and great for travel, while glass rigs offer better flavor and vapor consistency. Additionally, consider the type of dab nail you want to use (titanium, quartz or ceramic) to vaporize your wax concentrates.