This scientific glass mini dab rig has a rare design that distinguishes it from other oil rigs. From the mouthpiece to the connected banger nail, this entire beaker vapor rig is crafted from high quality quartz. The dab rig is unique due to its lack of a joint, as the bottom of the nail is a fixed downstem that goes into the beaker chamber. This scientific glass mini dab rig has a rare design that distinguishes it from other oil rigs. From the mouthpiece to the connected banger nail, this entire beaker vapor rig is crafted from high quality quartz. The dab rig is unique due to its lack of a joint, as the bottom of the nail is a fixed downstem that goes into the beaker chamber. The bottom of this fixed downstem has slits for diffusing and filtering your vapor. The beaker concentrate pipe has a bent neck mouthpiece which acts as a splash guard to prevent water from getting in your mouth.