A front magnetic lens cap will protect your magnetic circular filters while on your camera. These caps fit Revolution kits and may fit Wolverine filters (but cannot be guaranteed).
To use the magnetic lens cap on your lenses when the filters are not installed you will need to use the adapter ring that comes with your kit, or purchase an additional magnetic adapter ring in the correct sizing.
If you need to purchase a cap in a size not listed, please enquire via the Contact page for availability.