If you send thru poslaju they won't ask to wrap nice as poslaju can accept the item without the wrappings. But usually they will put item in courier bag if it fits.

Yes...not all post office have courier bags...mostly can get courier bags at poslaju centres or big post office branch only. About not needing wrappings to send your stuff thru poslaju...this was told to me by an acquaintance I know who work as a manager for poslaju. Package is enough if sent in any box...no wrapping needed but if you don't put your item in box poslaju can also accept if they have courier bags to put your item in.