Marks & Spencer Ultra Light reading glasses have been designed using the highest quality optical materials, such as lightweight stainless steel frames, compressed lenses and hand made ear tips.,Item details: Semi rimless reading glass, Optical quality magnifying lenses to aid close work and reading,Marks and spencer reading glasses conform to british standards bs en 14139: 2002, Available in 6 dioptres +1.25 +1.50 +1.75 +2.00 +2.50 +3.00, For near vision and reading use