Red Black Silver Diamond 18Th Birthday Party Personalized Invitations size - approx 5.9 inches x 4 inches. Professionally printed personalized invitations & envelopes. Printed one side, postcard style onto very high quality satin 260 lb card. You can specify all of the text so any invitation / card can be adapted for any occasion. You can email us at info@redheartprint.com - please remember to include your name and order number in your email. Or you can tick the gift option during checkout to leave us a gift message or contact seller to send us an amazon message. Or Call us on (618) 708 6412 9am-5pm central time. For our personalized items, please check your spelling and send us your details exactly as you would like them to read. We will correct any spacing according to our templates. We may be able to change fonts & colours as required and you can choose any text you like. We have a huge range of personalized cards, invitations, wedding signs, prints, bunting & posters. Please see our store for more options.