No more dealing with cheap knock offs! The original Pulsar Knuckle Bubbler has a durable borosilicate glass body worked into a truly unique hand pipe. These spill-resistant hand pipes works with most blunts and cones to add awesome water filtration to any smoke sesh. One size fits most. Features 5.5 inches tall The Original Glass Knuckle Bubbler Spill resistant design Durable boro glass construction