What is the difference between Finesso glasses/sunglasses and Time For Wood sunglasses?

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The Finesso line is an optic line of glasses and sunglasses, where the lenses can be changed to correction lenses through the screw system. We do not recommend to change the lenses with the Time For Wood sunglasses, since there is no screw system integrated.

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Is there any warranty on the products?
Can I use correction lenses for the Finesso optics glasses/sunglasses?