Mini – frame Reading Glasses. Lightweight and attractive, these rimless style glasses provide near magnification for reading and other close work. Specs. Diopter: 1.0D. Lens Type: Aspheric. Case: Included. Case Material: Leatherette Case. Lens Material: PXM Plastic with Surface Coating. Temples: Chromium – Plated Metal. Temple Length: 130 mm. Bridge: Soft Silicone Nose Pads. Bridge Size: 22 mm. Frame Size: 47 mm. Focal Range: 40. Weight: .6 oz.