PREMIUM TITANIUM MATERIAL: The entire frame is integrally formed by premium titanium material, ultra-lightweight (only 10g) and highly elastic, super comfortable for wearing. VARIETY OCCASIONS: With the sweet spot between elegance and functionality, the trendy shape and mini logo make this frame an ideal pick that translates beautifully across occasions. PRESCRIPTION READY: The BOLON optical frames feature lenses that can be replaced with prescription lenses so you can enjoy clear vision and protect your eyes from the sun while still being fashionable! CASE & CLEANING CLOTH INCLUDED: Each pair of BOLON optical frames come with a cleaning cloth and case to clean and protect your eyeglass frames from scratches and damage. WARRANTY SERVICE: A two-year warranty is provided from the date of purchase. BOLON Ultra Lightweight Full Titanium Round Prescription Eyeglass Frames BT1559 Meridian 48mm, Exclusive Eyewear Brand of EssilorLuxottica