The lens is made of high quality PC material, high light transmission and high clarity Suitable for correct vision, and easy to adjust the head band, suitable for all kinds of head size. Materials that may cause skin irritation that shall not be used for the parts contacting with the user. Lens material shall be anti fogging material or anti fogging coating that shall be added. Length: 155mm Width: 60mm Features: -Sleek and ultra light weight wraparound lens -Suits a variety of face shapes -Medium Impact protection -Hard coat lens for Anti-Scratch -6.99.9% UV protection -The lens contains anti-fog coating to keep the field of vision clear -Moderate curvature of the frame is more suitable for the face and more comfortable to wear -Comfortably fit the nose bridge went design, stylish and beautiful. Wearting for a long time will not harm the skin -Ergonomic size design to protect the forehead and eyes Packing: Each product is packed by PE bag, and then put in export-use 5 layers carton.  Product Instructions  -Open the package,put the medical isolating eye mask on the eye area,pull the webbing back to the brain,and put it on the appropriate position on the head -After use,discard according to medical waste classification.