If you're looking for the perfect way to make someone's birthday a little more special, look no further than JAM Paper Blank Birthday Card Sets! These cards are made from high quality, 110 lb. cardstock, so you can be assured that you're getting the best of the best. This particular set features a Birthday Balloons design on the outside and a blank interior, so you can personalize a special message on the inside. The sets come with 25 cards and also 25 matching envelopes, so you won't be scrambling to find something that works.Details:Birthday Balloons design5.625" x 7.875" card and envelope size110 lb/297 gsm25 sets (cards and envelopes)10% recycled cardstock