This is for ONE LARGE glass bho essential oil extractor. It is approximately 9 1/2 inches in length with a 38mm outside diameter and 4mm wall thickness. These are great for small batches of oil. Also comes with NEOPRENE SLEEVE.  Glass extraction is the safest way to extract with butane! There is no risk of extracting plastic or metal fragments into your final oil product. Plus, you can watch your extraction through the glass as it works! If you want the best honey oil, glass is the way to go!  Don't be fooled by imitators our glass is 100% handmade in the U.S.A. If it doesn't have the Nuggy's sticker it's not ours!Beware of cheaper knock offs our glass is all blown in a studio by local glassblowers not ordered online from over seas. REMEMBER IF IT DOESN'T SAY NUGGYS YOUR NOT GETTING THE QUALITY YOUR DESERVE!  NOTE: All glass is hand blown so color, size and style may vary slightly. By purchasing these products, you understand and agree that these pieces are intended for tobacco and legal herbs only. You take full responsibility for knowing and understanding all State and Federal laws (including shipping) regarding these products. By making a purchase from this seller you are agreeing that you are at least 18 years of age. Thank you very much!