Horizontal and vertical design. easy to organize documents and turn pages. suitable for A4 size paper and letter size documents. Foamed PP material. Thick and easy to use. not afraid of rain erosion. not afraid of wet environment Clip after baking process. not easy to rust. clipboardThe use of rivet lock. strong and not easy to slip. strong clamp force. record storage. free and comfortable This file clipboards folder is versatile and covers the files to protect our privacy. Ideal for business meetings.meetings. schools. testing areas.business trips Professional stylish foldable Clipboards folder clip and two metal sturdy clips hold up to 100 pages of letter. A4 size paper with sturdy board clip.