Custom Polarized Clip On Sunglasses For Oakley METAL PLATE (55) OX5038 5038 55x18 (Black) Handcrafted workmanship on clip on lenses, virtually unbreakable Plastic 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:55, Bridge Length:18.