Heavyweight 65 lb. acid free cover. Perfect for greeting cards, postcards, report covers, rubber stamping, memory books, flyers, announcements and more. Lignin free, buffered. Laser and inkjet printer compatible. Assortment contains five solid colors: Hyper Yellow, Hyper Pink, Hyper Orange, Coral Red and Hyper Lime. Acid-free and recyclable. Each pack includes 100 sheets. Each sheet measures 8.5" x 11".