Custom Polarized Hook Up Sunglasses For Oakley WINGSPAN OX5040 5040 53X17 (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:17.