KLEAN is a premium quality, heavy duty glass, made for connoisseurs by like-minded connoisseurs, who believe in exceptional quality when it comes to smoking products. Each KLEAN Glass product is made from heavy duty, 7-9mm thick glass. Each product has our signature glow in the dark stripe and stands out amongst any other glass product you've used. All of our glass comes with a beautiful display box and everything you need, to maintain your piece for a premium smoke session. BUBBLER Features: Bubbler with deep bowl 7mm thick borosilicate glass 5 inch tall Signature KLEAN glow in the dark stripe Arrow shape authenticity stamp Inside the box: KLEAN Bubbler Cleaning brush