Spirax sketchbook No. 533 is the perfect companion for any budding artist or creative thinker. Featuring premium quality 110 gsm acid-free cartridge paper, these books are perfect for drawing and sketching. The spiral binding allows for easy use and flexibility, as the covers and pages can fold back and lay flat. All pages are perforated so that they can be removed from the book neat and cleanly. With Spirax sketchbooks, you can create your very own masterpieces.