I got unfocused eyeglasses so I do not wear them. I was offered to return the glasses at Dar I decided not to return since the shipping cost was close to the price of the glasses. I was disappointed.
Unfortunately they are so multifocal, that I am not able to use them even when sitting and watching PC. +0 dioptries are at very top part of lens, which you even not using. The target dioptries are in very small lower centrum of lens. As a result, everything around target center is not sharp and badly visible. It may be fault of my eyes, but for me it doesnt work. Sorry. Quality of metal parts are not bad, probably not produced from titanium.