works perfectly! shipping issue with usps but all was solved in timely manner!

well made, tight ground seals w/ maria . . . very nice.

Great, using as a mouthpiece reducer on my little bubbler. Fits tight with silicone gasket. Get way better pull on bubbler.

Just what I had hoped for. I already knew I could go to any head shop and buy this conversion adapter but it would not be blown by GRAV labs. I paired this 14 male to 14 male with GRAV labs android and have GRAV labs drop down downstems to take the heat away from the original joints. Since every 14mm joint male or female was blown by GRAV labs you get male and female joints that were made for each other. They fit perfectly and will have no wobbling. Just wanted to create a GRAV monster that was completely GRAV labs and this piece help me do that. Cheers