14mm Helix™ Multi Kit Assorted ColorsThe Helix multi-purpose kit is 8" long and made on 32mm tubing. Its Venturi chamber mouthpiece features three air intake holes that cool and spin smoke. The kit's three attachments pair with the mouthpiece: a spoon head designed for use with plant matter, a hammer bubbler head designed to offer water filtration, and a vapor nozzle designed for use with plant extract. The connection between an attachment and the mouthpiece is secured by a 14mm plastic joint clamp. The kit includes everything necessary to build all three assemblies, and the bubbler attachment functions best with approximately 0.5" of water.