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.

• Gives bound documents a professional appearance.
• Durable plastic binder spines of premium quality.
• The most popular, economical, and flexible binding method.
• 12 mm binder spines suitable for 56 to 80 pages.
• 21 rings, blue, round.
• Pack size of 25 pieces.
• Compatible with any plastic binding machine with 21 rings for binding up to 80 sheets.