Custom Polarized Hook Up Sunglasses For Oakley DOUBLE TAP OX3123 3123 (Black) Handcrafted workmanship on hook up lenses, virtually unbreakable Metal Clip mechanism. 100%UV and full polarized protection from harmful sunlight. Convenient one hand application to Prescription frames with positive indexing lens position. Scratch and Impact Resistance. Ultra light weight. Size Dimensions (mm): Lens Length:53, Bridge Length:18.