Enjoy reliable, durable organization with Carstens Heavy Duty Plastic Binder Index Dividers. Made from our extra strong 100% recyclable polyethylene plastic, these file dividers can withstand the tugging and pulling of heavy use without warping or tearing. They're a smart choice that eliminates the cost of replacing less durable paper dividers – a great value for medical facilities, offices, schools and even home organization of personal finance documents, recipes, homework and more. The plastic divider sheets are easy to wipe clean, while the divider tab space (.5" x 1.25") can be labeled with permanent marker without smudging, for clear, readable lettering that endures. This divider set has 11 uniquely colored blank divider sheets, each pre-punched to fit standard 3-ring or 5-ring side opening binders. For over 130 years, Carstens has been the choice of the pros, setting the standard for quality and durability in products for healthcare facilities and beyond. We're proudly made in the USA of US and imported parts, and a WBENC certified Woman-Owned Small Business.