EasySpine™ inserts make it practical to reuse binders, simply by changing the binder spine insert. These durable poly sleeves are pre-cut and insert easily into the spine of most 1" view binders for professional looking organization every time. Easy to customize, they're compatible with any printer. Visit the manufacturer's website and choose a spine template. Place the printed spine into the clear poly spine sleeve and slide the sleeve into binder spine. Simply change them as needed!. Spine Width: 1.00 in; Machine Compatibility: Laser Printers, Ink Jet Printers; Color(s): Clear; Quantity: 6 per pack.