Spring loaded Hinges. 5 Different Style Colours. Length between Lens: 17mm.
Konhago Blue Light Blocking Glasses for Men Half Metal Frame Reading Glasses Spring Rings Eyeglasses Anti Eye Training Eyewear Glasses UV, Pack of 5 assorted colours., Large
High Quality Reading Glasses / Spring Hinges / ???????? UK Super Lightweight Glasses
KoKoBin Half Frame Reading Glasses Spring Hinges for Men Women Slim Half Moon Lens Readers Metal Semi Rimless Eyewear(Gray，+1.5)
KoKoBin Half Frame Reading Glasses Spring Hinges for Men Women Slim Half Moon Lens Readers Metal Semi Rimless Eyewear(Black，+2.5)
Metal Reading Glasses/Spring Hinges/Large Frame/Simple Designed/Easy To Read L42
