Cokin Series P Circular Polarizer Filter

I have used Cokin filter system for years and find their products generally very good and practical. The circular polarizer was another good product, although it did have one flaw. To use a polarizing filter, you need to be able to rotate it in relation to the scene you are photographing to achieve the desired effect. The fit of the circular polarizer in the Cokin filter holder is so tight, however, as to make rotating the filter more difficult than it should be. Other than that, it was a very good product.