Double wire is a continuous metal wire that is formed into pairs of loops that are connected together to make up a binding element. The loops resemble a letter C when open and viewed from the end. After the pages are loaded onto the element, the wire is closed into a circular shape. Double Wire gives your books a very professional appearance, allows the pages to turn very easily, and lets the book lay completely flat when open. The pages remain aligned when opened so spreadsheets, charts, graphs, and illustrations that extend across the middle of the book will remain correctly aligned. Pages may also be wrapped around to the back of the book which marks your place in the book and gives it half the footprint, all while remaining flat.

These SHIRLEYYA Wire Binds are 2:1 Pitch and have a solid coated finish that will last for years. To check if these are the right size for your book, measure the thickness with covers, and then use the next size wire up. This ensures you'll have a finished Wire-O Bind that will open with ease.

The 2:1 pitch means there are two loops per inch, and they have 21 total loops. This pitch of Wire O Binding works well with small and large books alike, and are often used by architects, real estate agents, and professional office environments due to their classy look.

Take your pick of colors including: Black, White, Gold and Sliver

Wire binding is easy, and follows a simple process:

1) Choice of the size, the pitch and the length of the spiral.

2) Punching of the sheets.

3) Cutting of the spiral in pieces of the desired length

4) Place Back cover on top of front cover

5) Insert the Wire C-Shape (and the hanger in case of calendar binding)

5) Closing of the double loop wire

6) Flip back cover to back