Set of two A4 drawing pads

This set combines a tracing pad and a graph paper notebook with small detachable paper drawing instruments on the back.   An essential tool for architects, engineers and creatives, this study tracing block has been designed with a very thin tracing paper (70 g) to provide transparency favoring the superposition of sketches and details. 
The sheets are detachable and perforated so they can be easily archived, project after project. 
A rigid background has been added to this block in order to be able to draw in all places and all situations (standing in front of a site, in a site meeting, on a plane or a train, etc.). European manufacturing