EASY & ESSENTIAL. The Graphite Boro Tube is a necessary upgrade to your EVO experience. By utilizing gray borosilicate glass, these tubes will mask the residue build up that comes with repeated use. By utilizing EVO technology, this tube efficiently delivers an extremely potent aromatherapy experience, using up to 50% less material. Made of gray borosilicate glass. Pack of 5.
All of our glass is hand made by a glass artisan. While we do try and make each piece as consistently as possible, because each one is hand-made, you may see a slight variation or imperfection from unit to unit.
WARNING - YOU CANNOT INVERT THE EVO WHEN USING THE BORO TUBE