i really like both these don't know witch one there almost the same ones 19.5 and others 15.7 only difference Molino Premium Bong Line - 7mm - 50cm - Green Logo - English - Grasscity.com other Molino Premium Bong Line - 7mm - 40cm - Blue Logo - English - Grasscity.com
Not necessarily^ I'd get the 40cm. thats plenty tall enough for a normal straight tube imo. if it had percs i'd say go the 50cm, but it doesn't hah.