This Isometric Paper Notebook Is Printed with A Grid of Equilateral Triangles. It Is Perfect For Any Kind Of Three Dimensional Design Including Engineering, Architecture, Landscaping, Or Sculpture. It Is Excellent To Draw Puzzles Or Complex Or Labyrinthine 3D Images With Boxes And Staircases. Ideal for 3D Printer projects. The Isometric Graph Paper Notebook is ideal for drawing 3D shapes. Suitable for students, designers, architects. Isometric Graph Paper Notebook is perfect for drawing 3D models