Silhouette 5065 Polarized Gray Clip On (Shape: 7611 Size: 49/19) plastic frame Composite lens Polarized Lens width: 49 millimeters Authentic Silhouette Clip-Ons Designed To Be Used With Silhouette Eyewear Only Full 100% UVA/UVB Protection Includes Official Silhouette Case Lightweight & Durable