Also known as oil rigs or mini bubblers, these mini dab rigs resemble the water-based devices you are likely familiar with when enjoying your favorite concentrates, oils, extracts, or waxes. The most compact and efficient mini dab rigs on the market! Unique to MJArsenal, these mini dab rigs are designed to be both compact for discretion, portability and also to maximize the flavor profiles from your concentrated materials.