Never smoke dry crumbly weed again! In this video Bob Raws (Josh), explains how to properly use a hydro stone. The proper use of a Hydro-Stone can create a much longer life for your weed. The RAW Hydrostone is made of natural clay and is completely eco and reusable! Hydrostones have been used for hundreds of years and are incredibly effective and RAW AF! You are definitely going to want one after watching this video!