Need to bind 450-sheet reports without them falling apart? These 51mm plastic coils do exactly that. Twenty-one loops grip pages securely, and because they're reopenable, you can add or pull pages whenever you need to — no rebinding required. Documents lie flat when you flip through them, making presentations look polished. Box of 50 in black, cost-effective and built to last through multiple uses. Stock up for your NZ office binding setup.