Function: *Blue ray blocking - It can absorb high-energy blue light. *Clear lens - The lens has high light transmittance. Less reflective, no affect reading, and almost no color difference. * UV protection- Anti blue ray lens protect the eyes from ultraviolet radiation and block UV400. Perfect Readers for men women reading, video gaming and computer reading. Available diopters: +1.0/+1.5/+2.0/+2.5/+3.0 Package Content: 3 xBlue Light Progressive Multifocus Reading Glasses, 1 x Soft pouches, 1 x Cleaning Cloth. All packaged in a mail box! The mens womens fashion glasses is made of extremely lightweight and strong PC material that does not compress the nose or clamp the head.Polycarbonate Lens to be sure that colors are true and undistorted,provides the perfect balance between eye protection and viewing quality.Stylish square frame design can perfectly match various face shapes. In short,it is a high quality readers that can be shared with family, friends or partners.