An oil rig is especially made for usage with concentrates, alternatively all accessories required for dabbing are included in the package. Usually smaller than traditional bongs and remind us more of bubblers with advanced percolators for the filtration, some even have so called recycle chambers for real dabmasters. Most of them have an included glass nail with matching dome, a couple also have a titanium nail included. Remember to not heat quartz and glass nails as much as titanium since they break easily. We also sell a number of different nails together with carb caps, dabbers and other. Happy dabbing!