Feature Highlights: 1. Premium Plastic Construction: Manufactured from high-quality plastic, these rings are durable, resistant to cracking or splitting, and safe for hands. 2. Versatile Use: Ideal for a variety of applications including loose-leaf binding, memo filing, sample organization, document sorting, and children's learning cards. 3. Easy & Secure Operation: Features a simple pull-to-open and squeeze-to-close mechanism with a secure lock to keep contents firmly in place. 4. Efficient Two-Hole Design: Unlike traditional metal rings, these are designed for easy, tool-free installation into standard two-hole punches without requiring force. 5. Color-Coded Organization: Available in assorted colors, allowing for visual categorization and prioritization of documents or materials. Product Details: These plastic book rings provide a reliable and user-friendly solution for paper holding and organization. Their sturdy construction ensures long-lasting performance, while the intuitive open/close mechanism allows for quick and effortless access. Perfect for office, school, or home use, they help in efficiently sorting documents, presentations, samples, and educational materials. The color assortment enables effective color-coding systems. The set includes 300 rings for ample supply. Specifications: - Color: Assorted Colors - Material: Plastic - Product Dimensions: 3.50 x 3.50 x 0.40 cm / 1.38 x 1.38 x 0.16 inches - Inner Diameter: 28 mm / 1.1 inch - Package Contents: 300 x Loose-Leaf Rings