Features TRANSPARENT COVER This matte and translucent cover effectively prevents see-through, allowing free writing, drawing, etc. FLEXIBLE TO USE The 30 hole design and A4 size allow for easy installation and smoother page turning, can be easily cleaned by wiping. Extensive use: can be used on various occasions, including but not limited to notebooks, reports etc., durable for long time use. Better Protection The flexible paper protector is made of high quality PP plastic and provides better protection from water and dirt. Including 20 pieces: the set contains 20 pieces binding presentation sleeves, and the large quantity will cover your replacement needs. Specification: Item type: blade guard. Material: PP plastic. Package list: 20 x sheet protectors. Package List 20 x Sheet Protector