The set includes 3 Teflon elastic bushings of 3 slightly different diameters to replace the damaged bushings of the 9mm housing mouthpieces. of the latest generation that have Teflon pins and 1 adapter to be able to smoke without using the filters.

To replace the damaged bushing it is necessary to:

1) Detach it from its seat by gently squeezing it all around with pliers until it can be extracted.

2) Clean up any excess glue taking care not to damage the seat.

3) Choose from the bushings of the kit the one that best suits the mouthpiece barrel coupling.

4) Glue the new bushing by putting a very thin layer of cyanoacrylate (Attak) only on the initial part of the bushing before fitting it into the mouthpiece seat.

Remember that the adapter MUST be used when not using filters to protect the bushing from excessive heat.
Furthermore, you should never disassemble the mouthpiece when the pipe is still hot.