The first affordable all-glass gravity smoking system ever made, The Gravitron is a great gift for any customer, entry level to aficionado. Widely known, The Gravitron is the most efficient smoking device on the market. No smoke is lost because it is contained within the inner chamber and consumed without leaking. Extra-heavy glass makes it a super-durable piece. In the case of clumsy friends or coffee table accidents, all parts are affordable and easy to replace. Available in Large and Xtra-large ! Go Big or Go Home! Label color may vary. If you would like a specific color, please use the comment box of your order to notify us of your request. If the requested color is out of stock, you may receive a different color. (Generally, GravLabs products are available with blue, green, black, etch, or red labels). We cannot guarantee all colors in stock. Some grav fun