Question about Picture Study Portfolios

Just wondering if any of the prints were available in other sizes?  I like to give my children a 5×7 copy of the prints we look at to keep in a art photo album of the artists we study.  I already purchased one portfolio, but thought that would really add to our study.  I don’t like how my printer prints pictures, not sure if there are other options?  I’m not very techy!  Many Thanks!!