Made with strong and long fiber manila board. New side-loading uniqlip. The special side-loading spring technique with the new "uniQlip" which makes it convenient to load and unload documents with a "single touch". Top and bottom edges of file at spine are laminated making it tear proof. Improved Spine engineering, which makes it easy to stack file vertically & conveniently write file name on spine. Available in A4 size with vibrant colors.