These are radiation protection glasses. Since they are new and unused, please take a look at the photos and consider purchasing them, as returns are not necessary. They protect against X-rays from all directions. ◆ Significantly cuts scattered radiation entering from gaps in all directions, top, bottom, left, and right! X-ray cut rate: Front: approx. 70%, Top, bottom, left, and right: approx. 74% ◆ Lead sheets are attached to the inside of the top frame and inside the pads, providing X-ray protection performance down to the smallest details. ◆ The flexible temples can be adjusted to fit your face. ◆ Can be worn over eyeglasses. ◆ Anti-fog coating on both sides of the lenses. Comprehensive Catalog 2021 page: 894 Notification number: 18B3X00046000006 Sales name: EYE CARE XRAY EC-10 XRAY Eye Care X-ray ・General medical device Product number: mmiM93-001-72