Product Name: 1.56 Photochromic Grey Hmc Optical Lens Lenses Color: Clear Coating: HMC Type: Photochromic Lens Material: Resin Suitable for Face: All Face Gender: Unisex Age Group: Adults Function: UV Protection, Photochromic Index: 1.56 Abbe Value: 38 Specific Gravity: 1.26 Transmittance: 98 Abrasion Resistance: 6/8h Trademark: BORIS Transport Package: White Envelope or Color Envelope Specification: 75/70/65mm Origin: China HS Code: 90015099 Product Description FAQ1. Could you provide samples?Of course, free samples can be sent to you, but please help us pay the freight fee.2. What Certification do you have for your optical lens?FDA, CE, ISO9001 certification is available.3. What is the MOQ of optical lens?We dont have Min Order quantity requirement. But if the quantity order is too small, we have to charge extra delivery fee.4. Could you provide OEM service?Sure, just send us your requirements.