This filter pack contains an array of filters each 305 x 305cm in size plus an internal folder the 15 filters have been selected from ruscos most popular filters addressing the most common photographic needs the selection comprises of full blue 12 blue 14 blue roscosun 12 cto tough plusgreen tough silk flex g gold tint tough uv filter powder frost light red primary blue moss green roscosun cto roscosun 14 cto and light tough frost filters the filters can be attached