Please be sure to read my profile. ♡╰(*´︶`*)╯♡ Cardboard Bulk sale of 25 sheets Approximately 31.5 x 10.4 cm Thickness approximately 0.3 mm Cut with a cutter, so there may be some distortion, wrinkles, and folds. I will ship 25 sheets in bulk, but I will add about 3 more sheets. Regarding shipping... I will ship without a box, in a water-resistant vinyl bag, via Yu-Packet Post. Please purchase with your understanding.