Introducing the StemClenz Cleaning Caps! 
These caps are designed to fit over the mouth piece and joint of your glass pieces during the cleaning process for a leak-proof seal; Allowing the user to get a better hold of their glass while keeping their hands free of toxic chemicals, like isopropyl alcohol. 
These Caps include sizes that allow users to clean their tubes, 38mm-50mm, as-well as rigs with smaller joints! Product includes (3pcs).

StemClenz Cleaning Caps