Some features of our Back to School Postcards for Teachers: - Professionally printed on 80# cardstock so they are nice and sturdy - Makes it easy to send out a small note to let students know you are thinking of them - Easy to use because all you have to do is write a short note, address it then mail - 30 postcards per pack included - 4" X 6" so they can be mailed as is without an envelope using a discounted .34 postcard stamp. Perfect for getting students excited about returning to school! You are going to love how quick and simple it is to let your students know you care. The blank space in the back make these cards a breeze to fill out, simply write your write a short note, address and mail. Save time because these teacher postcards are printed and shipped straight to you. There's no need to download and print and cut yourself. Teacher Postcards will arrive in your mail box ready for you to fill out and send. We make it easy to stay in touch with your students. Your purchase is backed with a 100% money back guarantee, if you don't love them simply return them for a 100% refund.