This kit includes a Kase Wolverine Magnetic Circular Filter and an Adapter Ring.
Kase filters are made from toughened Pro HD Optical Glass that is scratch-proof and water/dust/dirt repellent.
They feature a Metalic Nano coating and have no discernible colour cast.
This filter can be stacked with other Kase Wolverine Magnetic filters or simply used on its own with the included adaptor.