So I finally figured out how to open these stupid treasure chests but I don't know whether I should spend my points on the keys to these chests OR buy upgrades for my equipment so I need to know what items come from these chests. A full list would be nice but any number of items is appreciated.

These chests arnt worth opening I would sell them on ah , there are purple chests lvl 51-55 I think that are worth it but those arent I'm afraid

Thanks dude, I will go ahead and sell them.