This is made with 17.5 x 17.5 cm patterned origami, which is larger than standard (15 x 15 cm) origami, so bills will fit easily (bills not included, for illustrative purposes). Please see photos 8 and 9 for the finished size. (Photo 10 compares it to a standard size.) Thank you. (Two small envelopes made with standard size origami will also be included.) Thank you for looking.