Full Set: 50 Pack of RSVP Postcards for wedding favors, receptions, parties, events, and celebrations. High-Quality: Made with 14pt (140lb or 300gsm) card stock, these wedding RSVP cards are sturdy and easy for guests to write on. Size: These RSVP Postcards size 4 x 6 inches, the compact size makes them convenient to store. How to Use: Use RSVP cards for more than just wedding invitations but for all occasions. With a blank response card, guests can simply check off "accept" or "decline", then mail it back. Widely Using: Perfect for the engagement party, bridal shower, baby shower, rehearsal dinner, retirement party, anniversary, housewarming, or any special occasion. RSVP Postcards, Pack of 50 Blank RSVP Cards Stock for Weddings, Receptions, Showers, Birthday Parties, Celebrations, and Special Events, No Envelopes Needed 4"x6"