I have these two greater pet dyes I need to give to someone as a trade, but when I click on them the send item button won't light up. Help please?

Hello!

Where do the dyes come from?
If they are from the Advent Callendar rewards, then sadly, they are not tradeable. :(

Oh darn, they are from the calendar. Thanks for letting me know.

I did see some people trading them, as well as the Mutators from the calendar.
But it was a bit... unconventional way. Complicated but doable.

But it mostly works If the philters are to be used now. :(

Basically...
The owner of the philter "buys" the pet from the pet owner that needs the philer.
(the same way as with providing genetic testing services)

Then the original pet owner tells the philter owner how to use a philer on that specific pet.
(Like... "Use that Greater Pet Dye to give my pet Eye Color: [insert color hex here])
The philter owner uses that on the pet and then returns the pet to the original owner.

Like I said, a bit complicated...
But some people were doing it.

Okay thanks!