Unisex Jolie Blue Light Protected Tr90 Frame Optical Glass Compatible Blue Block Glasses

Gender: Unisex Mineral Glass Blue Block Protected Blue Light Filtered Screen: 48mm Bridge Spacing: 20mm Shank Length: 135mm TR90 Frame This material, which you may often hear as Grilamid TR90, is a transparent granular polymer. This material, which has incredible flexibility, is among the main reasons why it is frequently preferred. Although this material is used for many different purposes, it is especially preferred in eyeglass frames. They have become a popular option due to the superior advantages they offer in both prescription glasses and sunglasses.