G-Spot Glass
Since 2000, G-Spot has been producing first-class, individually handmade glass bongs and accessories from the finest high-grade borosilicate glass at their Wertheim, Germany facility, but what they're really famous for is their development of the Solid Tank Joint. The joint is a weak point on a glass bong, but the innovative Solid Tank Joint is constructed with ultra-stable grinding, ground on the inside, and layered with thick glass, designed to withstand even the toughest strikes.