Description This is stack designed to protect your camera filters and lens. It will effectively keep your filters from dust and scratch, suitable for one filter or multiple filters together. A practical and convenient storage case to your photography equipment. Features - Color: Black. - Material: Aluminum alloy. - Size: 77mm. - Compatible to 77mm filters and lens with 77mm thread size. - Protect filters from dust and scratch while they are not being used, convenient to keep the case inside a camera bag. - Simply screw the filters together, then screw these stack caps on the and bottom. - Protect one filter/lens or multiple filters/lenses in the same time. Compatible to 77mm filters and lens with 77mm thread size. Protect filters from dust and scratch while they are not being used, convenient to keep the case inside a camera bag. Simply screw the filters together, then screw these stack caps on the and bottom. Protect one filter/lens or multiple filters/lenses in the same time.