UNDURCUVUR (pronounced “under cover”) is an innovative company manufacturing discreet & odor-proof smoking accessories by combining glass and rubber. They are proud to claim the stealthiest product line in the smoking industry. There 2017 catalog feature unbreakable odor proof Stash Jars, smell-proof glass Dugouts, and a glass Steamroller wrapped in silicone rubber with an optional odor proof carrying case! UNDURCUVUR emphasis on odor-proof because they seriously believe in personal privacy. By hand-picking a proprietary blend of polymers (rubber) with the goal of eliminating gas permeability (which is how odor is transported through polymers like silicone) silicone rubber has 450 TIMES the gas permeability of our rubber blend - this translates to no-odors emitted - UNDURCUVUR truly strives to deliver odor-proof smoking accessories for your convenience. For product quality and durability, UNDURCUVUR custom designs and tests their exhaustively to make sure they deliver the experience you are looking for. UNDURCUVUR signature cap & sleeve brings the first fully soft yet stretchy closure system the industry has to offer that’s both air-tight and easy to open.