150 Engineering skill is required to wear these goggles as well as to craft them. As an Engineer-only item, they are probably not worth trying to sell in the Auction House. [Medium Leather] may be irritating to attain, as the preferred side-along profession is mining. Try the aforementioned Auction House or farm treasure chests.
These are popular among level 19 twinks given the skill cap at that level is 150.