3.5" long - Replacement for Silicone Water Pipes Smokin Js sells. These will not work as replacements for ground joint glass water pipes.
Hand blown glass on glass diffused sleeve. 14/19mm means its a 19mm sleeve that fits a 14mm glass on glass slide. We measure from the bottom of the 19mm ground joint to the end.
This model has 12 holes at the bottom instead of cut slits like most sleeves. What do you like best? Smokin Js has it all.