Exact Index Cardstock, 8.5" x 11", 110 lb/199 gsm, Gray, 250 Sheets (49591) Hardworking and durable cardstock, smooth finish for enhanced ink holdout Performs in personal and professional print devices for medium to heavy weight applications 110 lb. Index meets USPS 7 pt. minimum requirement for business reply cards Forest Stewardship Council (FSC) certified, 30% Post-Consumer Recycled Content Acid-free and lignin-free for long lasting documents