Eyekepper Computer Reading Glasses,Blue Light Filter Rimless Readers,UV Protection, Tortoise Arm +0.75

• Eyekepper BB40 lenses - transparent lenses with coating.100% UV protection.
• Eyekepper BB40 lenses - transparent lenses with coating.100% UV protection.
• The lenses do not block blue color of online test for color filtering properties.Please check Eyekepper BB60,BB90 and BB98 lenses if you need block blue color and block more blue light.
• Test via the spectrometer(the performance of blue light blocking): block 29% within 500nm, block 32% within 490nm, block 33% within 480nm, block 35% within 470nm, block 36% within 460nm, block 37% within 450nm, block 39% within 440nm, block 51% within 430nm, block 93% within 420nm, block more than 99% within 400nm-410nm.
• Almost no color distortion.
• PRODUCTS DIMENSION-Frame material is plastic,Lens width about 2 1/16 inches(52mm),Frame width about 5 5/16 inches(135mm),Lens height about 1 1/16 inches(27mm),Bridge (DBL) about 11/16 inches(17mm),Temple length about 5 1/2 inches(140mm),without Spring Hinge.

Description Frame material: plastic Lens Width:2" (52mm) Lens Height: 1 1/16" (27mm) Hinge for hinge width: 5 5/16" (135mm) Bridge (DBL): 17mm(11/16") Temple Length:5 1/2" (140mm) Spring Hinge: No Student to Student Distance: 2 7/16" (62mm) Lenses: Aspheric Head size: narrow to medium.