Exceptional value set: 7 sets of loose-leaf notes in different styles, each with 10 different color labels, designed for color coding, 20 sheets per color, 1 set of 200 sheets in total and a set of 1400 index labels. The index label sticker includes a ruler that can be attached to a loose-leaf notebook to prevent loss and used for quick measurements when needed. This value set meets a variety of organizational needs. Safe and high quality: The sticky notes are made of high-quality PET material, eco-friendly, safe, soft, strong, durable, and feature reliable adhesion. Smooth writing surface, waterproof, non-toxic, lightweight, easy to carry, long-lasting, and resistant to creasing or fading. Color sticky notes: The colored sticky note pads are writable and ideal for marking important pages, color coding tasks, organizing notes by topic, and quick reference. The transparent design allows text underneath to remain clearly visible, making the index marks both functional and attractive. Reusable: The labels are semi-adhesive, allowing for easy repositioning if placed incorrectly. They can be removed and reapplied multiple times without tearing or leaving residue. This unique sticky note can be reused over 100 times, making it ideal for documents and planning. Wide range of applications: Suitable for use with ballpoint pens, pencils, and permanent markers. Water-based and unisex pens are not recommended to avoid ink bleeding or smudging. Ideal for bookmarks, reading labels, measurements, diagrams, and more. Makes a great gift for students, friends, DIY enthusiasts, and journal lovers. Note: All measurements are manually taken; please allow 13 cm variation. Due to differences in lighting and display screens, colors may vary slightly from the actual product.