The A4 size file organizer is made of great material, which is durable, sturdy, lightweight and wear-resistant. You can carry it when you attend an indoor class, meeting or an outdoor survey project. Two premium metal spring clips are strong, durable and sturdy, and it can securely hold up to 100 pages of the letter.Two thick plates of this professional and stylish foldable citation clipboard will hold your paper and important documents securely when closed.