Material: These cute sticky notes are made of premium PET material and special adhesive, waterproof and translucent, non-toxic, no odor. Sturdy and durable, not easy to fade. Size: You will receive 300pcs page flags (totally in 5 colors), including 3 sets, 100pcs for each set. Each index tab measures about 1.7x0.5inch / 4.4x1.2cm, meet the needs of daily study and work. Feature: Convenient pull-out design with portable base plastic box, very easy to pull off it. The translucent index tabs won't cover up words and texts. Recommended to use a ballpoint pen or pencil for writing. Function: Help you plan, organize, prioritize and personalize work, improve work efficiency, such as studying for exams, reading books, filling documents and looking for schedule. Wide use: These colored transparent sticky notes flags are suitable for marking books, documents, magazines, folders and papers, etc. Widely used in schools and offices.