Create signs invitations and custom postcards with this Exact Index Cardstock. Create custom postcards mailers signs and invitations with this Exact Index White Paper. Acid-free construction prevents discoloration to keep each sheet looking crisp and new while the smooth finish holds ink for bright color and bold monochrome prints. Boasting a 90 lb. basis paper weight this Exact Index White paper is durable enough to withstand handling by mail carriers and couriers. - This Exact 90 lb. Index Cardstock is perfect for all personal and professional projects!. - 250 sheets of 8.5 x 11 paper for premium quality projects. - Durable smooth surface for exceptional ink holdout. - Acid and lignin-free to stop yellowing and crumpling over time. - Compatible with Inkjet and laser printers for quick and easy printing. - FSC Certified for paper that is bright and environmentally-friendly. - Paper is acid-free which prevents it from crumbling or yellowing. - Contains 30% recycled post-consumer content for a sustai