Your My Little Pony birthday party was a great time, so thank your friends with these special cards in your party theme. Each full-color thank you card features Rainbow Dash and Rarity and reads "Thank You!", with blank lines on the back for your personal message. Paper. The set includes 8 each of 4 1/4" x 6 1/4" postcard cards, pink envelopes and 1 1/4" seals.