Here is our Reef pattern etched quartz banger. Hand made in the heart of Long Island at Long Island Glass Studio. This Pattern Features a full reef scene and goes perfect with any aquatic piece of art. Available in 10mm or 14mm (male) ground glass joint, both 90° + 45°. Now with 25mm or 30mm cups! With a 3mm thick extra deep wall and 4mm base these bangers were designed to retain Heat. the proof is in the puff . Deeply beveled inner lip for the perfect air tight seal. All of our art is deeply etched with highly detailed engravings one at a time.