Fellowes binder back, 14mm, 21 rings

Even after more than 50 years on the market, the binding system for plastic bindings is still considered one of the best methods for binding documents. The flexible and cost-effective system meets the needs of most users, from students to professionals in large companies. It gives bound documents a professional appearance. Durable premium-quality plastic binder spines. The most popular, economical, and flexible binding method. 14 mm binder spines suitable for 21 to 40 pages. 21 rings, white, round. Pack size: 25 pieces. Compatible with any plastic binding machine with 21 rings for binding up to 40 sheets.