• A PROFESSIONAL'S CHOICE - Alvin has been the professional's choice for drafting tools and drawing supplies for over half a century. We are known for our wide selection of high quality tools at a fair price.

• EASY-TO-USE INSTRUMENT - Combines the functions of a parallel straightedge, triangle, protractor, T-square, and compass in one. One of the most useful and convenient aids for drafting, drawing, and nautical applications.

• SMOOTH GLIDING ACTION - Enables you to draw parallel lines with ease and accuracy. Make parallel lines without twisting or turning under accidental pressure.

• DURABLE ACRYLIC BLADES - The acrylic blades come with printed graduations and through-holes at ½-inch increments for drawing circles.

• FIRM GRIP - Features a comfortable aluminum roller bar with non-skid rubber O-rings for a firm grip on any surface.

Made in Poland