These are genuine Randolph replacement lenses! NOTE: Buy them while you still can! Once I run out they are gone! Randolph has decided that they will no longer allow anyone to sell these replacement lenses except through a Randolph approved optician. Refresh your Randolph Aviator sunglass lenses with a new pair of Genuine Randolph Engineering Replacement Lenses, available in SKYTEC™ Glass. These lenses are designed to fit perfectly into your frames, restoring visual clarity, and ensuring your sunglasses remain as effective and stylish as ever. Replacement Process: Prepare a clean workspace. Use a 1.4 mm flat-head screwdriver to loosen the screw on the top of the lens holder (monoblock). Carefully remove the damaged lens. Place the new lens into the holder, making sure it fits securely. Tighten the screw to secure the new lens. Additional Care: After replacement, clean the lenses with a quality lens cleaner like our Purity 2oz solution and a microfiber cloth for optimal clarity. If you need a new microfiber cloth or cleaning solution, you can find them on our website. Product Details: Compatibility: Randolph Aviator Lenses: SKYTEC™ Glass Lenses Included: One pair of replacement lenses