FRAME Handcrafted bioacetate – biodegradable & petroleum free. Prescription ready. LENSES High quality CR-39 lenses. 100% UVA/UVB protection. PROTECTION Custom-engineered spring hinges. Custom wire temple cores for added strength and LENS WIDTH (1) 50MM BRIDGE (2) 19MM TEMPLE (3) 140MM Worn once, in great condition no scratches. Comes with protection case.