Custom Polarized Clip on Sunglasses For Ray-Ban CLUBMASTER RB5154 RX5154 51-21-145(Black) Handcrafted workmanship on clip on lenses, virtually unbreakable Plastic Clip mechanism. 100%UV and full polarized protection from harmful sunlight. Great for night activities such as night Convenient one hand application to Prescription frames with positive indexing lens position. Ultralight weight, avoid extra pressure on your nose. Size(mm): Lens Length:51, Bridge Length:21 The product item does not include the frame.