2x Metal Round Screw in Lens Filter Stack Caps Protector Case 55mm, Black

stack caps:these lens filter caps with same size are stackable,just screw your filters together,then screw the stack caps on the top and bottom of your stack. portable:the metal covers make your filters more organized,easy to carry and they only takes up a little space,very convenient. lens filter protection:lens filter protector case could keep your filters from dust,scratches and fingerprints while not in use. universal:filter stack caps are a convenient way to organize your camera lens filters,7 sizes optional,fits for most lens filters,such as uv cpl filters. high quality:the screw in lens filter stack caps are made of high quality aluminum alloy,wear resistance,very durable.