DETAILS: Custom Binder Spine Inserts Create professional-looking binder spines. Micro-perforated cardstock for easy separation of each spine. Firm cardstock makes it easier to insert each spine into a binder. Laser and ink jet compatible. Five sheets per pack. 3" Spine Width 3 Inserts per Sheet 15 Inserts per Pack WEIGHT: 0.21 lbs. SOLD AS: Pack STOCK NUMBER: 89109