This kit consists of the following filters: CC05M, CC10M, CC20M, CC25M, and CC30M. They are supplied ready-mounted for use in the Lee Filter Holder. This set also contains the Lee Gel Snap. The Gel Snap is Lee's easy and affordable filter holder. Simply insert your 4 x 4" filter, snap it shut, and "snap" it on to any lens 82mm or smaller using the included "Elastomeric Tension Device", also known as an "E.T.D.", i.e, rubber band.
These filters measure 100 x 100mm (4 x 4").