4 1/2 x 6 1/4, 114 x 159mm, A6 111lb Cardstock, 300g/m2, Matte Folded, Blank Cards Sage, Grey, Gmund Colors Matt 25 Pack A6 blank cards made using our colors matt Sage cardstock (Color #21). Our A6 Folders are pre cut and measure 4 1/2 x 6 1/4 when folded. This is a thick 111lb / 300 gsm cardstock. A6 cards are commonly used for invitations, announcements and notes. Matching A6 envelopes sold separately.