Description Product Details Warranty Information JONES NY 525 Grey: A classic retro round frame for men or women in a 51 medium size. Frame Material: Hand made acetate with spring hinges Fit: Medium 51 17 140 37 Comes with: Companion Case, Cleaning Cloth, 1oz. Eyeglass Cleaner Free Shipping (USA) Frame Size: Medium (49-52mm) Bridge Width: 17mm Color: Grey Shape: Square Material: Acetate Style: Full-Rim Spring Hinge: Yes newOptions: true 30-Day No-Hassle Guarantee