The "Marble Bub" is a straight natural perc mini tube with a twist...  We've added marbles! The marbles aid in functionality and they look bad ass too.  The marbles are loose and easy to take out for cleaning.  These guys are simple and straight to the point.  These bubblers are a wonderful value at $124.00.  

Made out of 32x4mm heavy wall tubing and standing around 10 inches tall.  The joint configuration is a 14mm female with a 14mm martini bowl.  If you need a simple, sturdy, and straight to the point piece then this will be a great option.