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