Royal Brites Blank Matte Greeting Cards with Envelopes, 5.5 x 8.5 Inches, White, 100-Sheet Pack (44824) Package includes 100 Greeting Cards and 100 Envelopes Conveniently prescored to fold in half to 5.5 x 8.5 inches Heavy weight 65 lb (176 gsm), matte finish paper that prints on both sides Compatible with all major ink jet or laser printers, copiers and software programs Acid free, Lignin free, Recycled Paper (minimum 30%)