Can't sell items of Team Fortress 2

[Chele]

Hi guys, I am selling all the useless stuff in my inventory, but when i try to sell TF2 items in the market Steam says I don't have any. If I try to sell them directly from the inventory the "Sell" button doesn't appear. May it be because i have uninstalled the game?

[JosephMeowlin]

That’s not the issue, many TF2 Items are unsellable and are achievements items etc

EX: I have 52 tf2 items that are not tradable/marketable

[J4MESOX4D]

Look at the tags associated with the item e.g.

Random Cap:-
Tags: Unique, Cosmetic, Scout, Sniper, Soldier, Demoman, Medic, Heavy, Pyro, Spy, Engineer, Tradable, Not Marketable

Some items can simply be traded only and not marketed. Others may be unrestricted and some cannot even be traded let alone put on the market.

[Chele]

Ok thanks, i thought that my items were sellable, but i was wrong