77mm Magnetic Adapter & Magnetic R-MCUV Filter. Adapter accepts 77mm Lens Caps and can be left on your lens. Eliminates Ghost Reflections, Glare and Flare. Protects Lens From Scratches & Dust Shockproof Tempered Optical Glass. Extremely Durable and Virtually Unbreakable Hardened, Easy Clean Top Coat Water, Oil, Dust, Fingerprint & Scratch Resistant Swap Filters Super Fast. Up to 4 Kase Wolverine Filters can be Stacked. Extremely Lightweight. Filter and adapter Weigh Less than 1oz. Ultra Low Color Cast. Ideal for wide angle lenses, no vignetting Includes Storage Case. 77mm Magnetic Adapter & Magnetic R-MCUV Filter. Adapter accepts 77mm Lens Caps and can be left on your lens.