MAGNA-FLIP Clip on Flip up Magnifiers, Converts Distance Glasses and Into Reading and Computer Glasses. +4.50 PowerBrand: Magna Flip Color: Clear Features: Lens size 60mm x 52mm x 138mm Overall Width New leg profile to fit both metal and plastic frames All metal alloy construction virtually unbreakable clip mechanism Legs have proprietary coating to protect ophthalmic lenses and prevent shifting and scratching Convenient one hand application to Prescription frames with positive indexing lens positions Details: Our clip on flip up magnifying readers are made to fit