• 【Quick Magnetic Installation】77mm magnetic lens cap can be put on or taken off in just one second, preventing scratches on the lens filter. Increases speed than ordinary screwdrivers lens covers. Magnetic can be removed and removed in seconds, so you don't have to worry about missing a photo opportunity • (2 in 1 Function) This 2-in-1 lens cap has a magnetic suction and screw. Magnetic lens cap allows you to easily and quickly cover your lens and protect your valuable lens. Furthermore, it is very convenient to use by screwing it on the lens without the need for a magnetic adapter ring • 【Durable Material】K&F Concept lens cover is made of aviation grade aluminum alloy material with high strength and impact resistance • Note: This magnetic lens cap is compatible with K&F Concept magnetic filters. For example, the 77mm filter and the lens are only suitable for 77mm magnetic lens cover, but the magnetic variable ND filter is excluded • ⚠️72mm K&F Concept Magnetic Variable ND Filter fits 77mm magnetic lens caps. (K&F Concept's magnetic variable ND filters need to be one size larger. )