Express Your Thanks:Handwrite personalized thank you cards for all of your loved ones, and let you truly express your personal thanks. Full Set: 50 Pack of double sided fill in thank you card postcards are printed on high-quality 300gsm paper cards. Easy to write on: Thick high quality matte cardstock makes them easy to write on, with a generous size allowing for plenty of room for you to write! Diverse use: weddings, birthdays, engagements, anniversaries, baby showers, baptisms, parties, events or celebrations.