GBC Black Proclick Spines For 8.5 books - 25pk MyBinding.com is currently the only company that carries GBC ProClick binding spines for landscape binding and half letter sized books. These particular 5/16 black GBC ProClick binding spines have 25 rings for use on an 8.5 inch binding edge and can hold up to 62 pages. This makes these black 5/16 spines ideal for binding letter or legal documents in landscape format. It also makes them great for producing 8.5 x 5.5 training manuals, directories, booklets, or cook books. With black GBC ProClick spines, your pages can be easily added and deleted with the included zip tool. These spines are designed for use with a standard 3:1 pitch wire binding punch pattern or with the GBC 3:1 Pitch ProClick Pronto punch pattern. Get 25 5/16 black ProClick spines with every order. Product number GBCPS25BLK. Product Details: Color: Black Length: 8.5 (25 Loops) Quantity: 25 Per Box Part Number: GBCPS25BLK If you have any questions about these Half Size GBC Proclick Binding Supplies or any of the other GBC Proclick Binding Supplies , GBC Proclick Binding Machines , or GBC Proclick Pre-Punched Paper that we carry, please call us toll-free at 1.800.944.4573 or send an email to email@example.com .