Why Grav Labs?
Grav uses the finest borosilicate glass; A type of non reactive glass with a high tolerance for temperature. These qualities make Grav Glass the ideal material for pipes, hitters, bongs and bubblers. Grav also uses pure silica for nails and bangers, which is even better suited for high temperature use.
Didn't find what you were looking for?
Leave information about the product you were looking for.