These are spare adhesive metal rings that will allow you to use your MagFilter with other cameras. The 36mm spare ring is used for the MagFilter CPL Filter only.
Select correct option for 36mm or 42mm before Adding to Cart .
The 42mm Spare Lens Ring can be used with the 42mm CPL Filter or any of the 52mm, 55mm, and 58mm MagFilter Threaded Adapters. Select the correct option before Adding to Cart.
(2) 2pcs Adhesive Metal Rings (attaches to front of camera)