The 7mm series from Illadelph Glass takes the 5mm series to the next level by using thicker glass. The 50x7mm glass tubing (fifty by seven) is 40% thicker than the standard 5mm series! The 7mm walls are put in place to help your tube withstand the daily bumps and bruises that a tube can be subjected to. The 7mm series has both beaker and straight tube water pipes available in 3 different sizes, 17”, 19” and 21” (short, medium and tall) and comes is one of 12 standard colors. Illadelph has also included a 19/22mm colored down stem and matching 14mm extra-thick single-hole slide. If you are hard on your glass, then a 7mm tube may be in your future. Get yours today from The Vault!