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.
INCLUDES 2 COMPASSES - Aside from the 6.5 inches Introductory Speed-Bow Compass, you will get an additional basic compass for your easy measurement, divider, and drafting needs.
DOUBLE-KNEE JOINTS - Features double knee joints for parallel leg positioning and precise drawing of large radii. Creates circles up to 12 inches diameter.
HIGHLY DURABLE - Heavy-duty drawing tool that features cast zinc construction and black fiberglass crown and reinforcements for durability.
STURDY PACKAGING - Packaged in hard, see-through plastic case with spare lead. Great for transport and storage.
Fiberglass ring head and pivot design for smooth, firm adjustment. Built-in spindle stop prevents over extension. Slip handle for spare ruling Pen.