Product Name: 3M12308 Chinese models a mirror dual-use protective glasses Product Description: 1. A dual-purpose and can be used alone, can be worn on most prescription glasses. Single-chip PC architecture, effectively preventing told particle impact 3 foot 99% UV 4. Packing: 20 to pay / box and many well-known companies, we have been so high brand quality protection, smooth as excellent quality do bad security environment and a better future.