Worm is an innovator in the glass industry focusing on unique, ahead of the times designs with classic function. His Heady Unicycle Rigs are no exception. Each dab rig is worked into a realistic unicycle shape that features a 10mm female joint, tire shape water chamber and a seat mouthpiece. The fixed 2 hole downstem perc offers a classic bubble filtration while the round shape of the chamber prevents any unwanted splashback. Each rig comes ready to dab with our best selling 45 degree 10mm Pulsar Banger.