Be treated to an exhibition as you watch the glass bongs propellers spin round and round. Propeller percs are unique and among the most sought after percs in the market. Air is forced through these percs via the angled holes. This makes the propeller blade to spin in the water causing even distribution of vapour. Watching the propeller perc in action is satisfying in itself. And you also get quality hits. There is also another perc, the swiss faberge egg perc. The faberge perc can be described as a work of art due to its robust and complicated design. This perc uses its entire body surface as a diffusion machine. Together with the propeller perc, you'll be getting what is probably the smoothest hits you've ever inhaled. And the lungs will generously thank you for the quality hits. The bent mouthpiece acts as a splashguard and prevents the awful tasting bong water from reaching your mouth. The flat base confers stability and the high-quality borosilicate glass confers durability.