STAPRICO Nylon Spiral Binder (2.2 cm Pack of 50)

Double loop binding, also known as Wire-O binding, is a bookbinding method that uses metal wire loops to secure the pages of a book or document. A wiro-bound book is a type of binding in which a wire is used to hold the pages together. The wire is bent into spiral shape, which is then threaded through punched holes in a pages. The ends of the wire are then bent back on themselves to create a secure hold. The resulting binding is strong, durable, and allows the pages to lay flat, making it popular choice for journals sketchbooks, and notebooks.