These are your replacement lenses for the new Anon M4 Cylindrical Goggle. Anon's Magna-Tech Quick Lens Change System uses 16 Rare Earth Magnets through 8 points of connection to easily swap out lenses when the light shifts on you. Compatible with M4 Cylindrical Frames, Magna-Tech Quick Lens Change System, Cylindrical Lens Technology, Wall-to-Wall Vision, Race: No, Category: Replacement Goggle Lenses, OTG: No, Special Feature: None, Helmet Compatible: Yes, Frame Size: Medium/Large, Lens Shape: Flat, Lens Type: Non-Mirrored, Model Year: 2022, Product ID: 542505, Model Number: 20449100103, GTIN: 0190450247084