Boss HG 1371 KB7 Optical Frame is a rectangular acetate design from Boss, built for everyday prescription wear. It features two-tone temples and a raised logo for a sporty, modern look. Key attributes: Black | Gray | Acetate | Adjustable end tips | Prescription-ready frame | Rectangular full-rim frame | Two-tone injection-moulded temples | Raised rubber logo on temple | Dimensions & fit: Lens width: 56 mm | Lens height: 40 mm | Bridge width: 14 mm | Arm length: 145 mm | Adjustable fit via adjustable end tips | Composition & care: Acetate | Wipe lenses with a soft microfiber cloth; store in protective case.