graph paper main lesson books

These high quality books are for subjects in the middle and upper grades.  The binding is made of heavy, 290 gsm card.  The writing paper is 90 gsm and when using normal ink, it can be written on both sides.

Books are with 40 pages.  21 x 29.7 cm, A4 size (8.27 x 11.69 inches).  Portrait format.

Small graph paper 5 x 5 mm.

Made in the Netherlands by Mercurius.