Hi, this is a faucet adapter that I use to adjust my outside sink. Without this part it sprayed water everywhere. So, I hope that this object would be useful to solve your problem.
The dimension of the inner radius are 3,2 cm the biggest part and 1,7 cm the smallest one . While, about the lenght it is 2 cm the first and 4 cm the second.
I suggest to use a support in your printer's settings, anyway you can print it without anything and probably it'll be fine.
THANK YOU for downloading this file!