Glycerin Bong Cooler by Grav Labs - Universal Male & Female Adapter - 14mm & 19mm
- Comes in both 14mm and 19mm joint sizes
- Extremely versatile with male & female joint fittings
- Used for dry herb bongs and dabbing rigs
- ***Colors may vary***
Ice is out, Glycerin is in.
Gone are the days when ice was needed to cool off a good bong rip. With these beautifully designed Glycerin bong coolers from Grav Labs, all you need to do is throw it in the freezer and use it whenever needed. With both female and male parts, this bong cooler can be used for most bongs and dab rigs alike.