How do I know which nx cash items are tradable and which aren't?

Which items bought from nx shop are tradable? droppable?
Infact, if I were to have more than 1 character in an account and want to share a pet (saving nxcash),
how do I do so? Is it even possible?

 

You can't trade pet and almost all NX items are tradable except donor items, pets, gach tickets, maybe something else.

 

Cash Shop inventory is not working. The only things that aren't tradeable off the top of my head are Gachapon Tickets and Pets.

 

thanks )
oh and what about hired merchant?

 

You buy that at the free market. Talk to Fredrick and buy it for 10k NX.