Constructor Zeichentechnik
W. Zaufenberger

Do you want to make freehand sketches that are accurate to the millimetre?

You can do so with this drawing pad, which consists of microscopic pyramids that guide the pencil. The folder can be used with all DIN A4 pads, but also offers the additional option of fixing loose sheets in the upper section with the metal clip. Inside on the right is a pad compartment with shrink-wrapped drawing film and magnetic flap.
Inside on the left there is a corner and business card compartment as well as a slide-in compartment for the scale ruler. Material outside: foamed synthetic material with light grain, very stiff design.

https://www.constructor.co.at/en/sketchingfolder-a4.html

Ideal tool for professional use! The CONSTRUCTOR is the universal drawing instrument with which you can produce complete drawings and constructions in no time. Guided by two knurled metal rollers, the Constructor glides parallel over the paper. The rule, as well as the entire instrument, can swivel around the circle tip. Templates developed from practical experience are included in the device. Horizontal or vertical straight lines, angular lines, circles or circular arcs become child's play.

https://www.constructor.co.at/en/sketching-device.html

The Constructor clipboard consists of the drawing foil firmly welded all around with two magnetic tabs for fixing and a stop bar for the paper. Very stabil design similar to the sketching folder, but without a cover. To be used with single sheets (size DIN A4), ballpoint pen or lead pencil.

https://www.constructor.co.at/en/Clipboard-DIN-A4.html

Robust measuring box made of hard plastic

W320mm x L470mm x H45mm
IDEAL DUST & MOISTURE PROTECTION!
Accessories:
* Mini Maglite lamp
* Folding meter 2m
* Pocket calculator
* Document compartment with lockable lid
* Clamp for pens
* Adjustable shoulder strap
* Dust and moisture protection for your documents

https://www.constructor.co.at/en/measuring-box-34.html