A UV filter as a lens protector and on a Hoya Pol-filter were connected that they were no longer to solve, even though I had it attracted only normal. One year I tortured myself around with it until I found this filter pliers randomly. The filters were easily solved. Perhaps one should the manufacturers of these filters to undertake this tool automatically to deliver as an accessory with, or again to revise their Produnkt's. A simple, inexpensive but very effective tool. Unconditional purchase recommendation