Greeting cards with vibrant artwork which can also be found on the inside of the cards and on the envelopes Printed on the cover : I'm trying to bend over backwards Printed on the inside of the cards : to make sure you have a GREAT BIRTHDAY Tree Free cards are made of hearty uncoated, 100 % post consumer recycled paper. They feel right since they are so much kinder to the environment then traditional greeting cards. Sold in packs of 6 identical cards. Each card measures 178 X 127 mm. Full colour 'designed-to-match' envelopes, made of sweetpaper (tm), are included.