This notebook is excellent for drawing.This Notebook has the following features. It isOf Size is 8.5" x 11" inchesHas 120 Pages of Isometric graph paper or 3D graph paper.Isometric graph paper notebookIs printed with a grid of equilateral triangles (each measuring .28").This book is Ideal for any kind of 3D design including including architecture, landscaping or sculpture. It is useful to draw puzzles or complex or labyrinthine 3D images with boxes and staircases. This can be used for planning 3D Printer projects in schools and colleges.This book can be used for Maths or Geometry as well. The triangles are arranged in groups of six to make hexagons. The name suggests the use for isometric views or pseudo-three-dimensional views. Among other functions, they can be used in the design of triangle point embroidery. It can be used to draw angles accurately. Ideal for Engineer, Artist, College. Easy to draw equilateral triangles and design or draw architectural designs and other scalpings. The graph and grids are excellent for projects.