EnChroma Atlas Sunglasses - Color Blind Glasses Metal frame EnChroma Sunglass Lens: Medium density, plastic lens Proprietary color-enhancing spectral filter. Lens width: 61 millimeters Lens height: 50 millimeters Bridge: 14 millimeters Arm: 140 millimeters Frame fit: Adult regular Multiple colors Sunglass Lenses Anti-reflection coated for maximum optical clarity. Hydrophobic coating: easy to clean. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!