Incredibowl Extension Tube for the Incredibowl i420 Smoking Pipe! You can increase the smoke capacity and make it in an even more comfortable and satisfying hit. The Incredibowl Extension Tube measures in at over ten inches long (26cm).
Incredibowl Industries utilize shatterproof polycarbonate for the Extension Tube (and original tube) which is also used in bullet proof windows. The Incredibowl is the product of countless hours of design, testing, research and development. It claimed 3rd Place in the Best Glass Category at the 2009 High Times Cannabis Cup in Amsterdam.