Tree-Free Greetings Eco-Notes Thank You Card Set, 4 x 6 Inches, 12-count Cards with Envelopes, Calico Cat (93002) 12-count 4 x 6 inch thank you cards and color-coordinated envelopes Vibrantly printed inside and out on 100 percent post-consumer recycled paper Paper made with wind power, processed chlorine free, green-E certified Eco friendly, sustainable and made in the USA Great for Calico Cat lovers