Made from high quality optical glass and mounted in an lightweight aluminum alloy frame, the Kase Wolverine Magnetic Entry Level ND Kit starts with the magnetic adapter ring, which screws directly into the front threads on your lens and allows for additional filters to be attached magnetically to the adapter ring.
Once the adapter ring is in place the magnetic Circular Polarizer or magnetic ND filters can be added without the need to screw the the filter into any threads, making for easy addition or removal of any filter. The Circular Polarizer can rotate freely when attached to the adapter ring, allowing you to increase or decrease the polarization, and multiple magnetic filters can be stacked together.