Alvin - Multi-Purpose Drawing Compass - with Pencil - The Alvin Multi-Purpose Drawing Compass is an easy-to-use compass that allows accurate drawing of any size circle up to 16 inches. This Drawing Compass is made of ultra rigid resin and fiberglass that features a universal holder that accepts a variety of drawing instruments. Two screws in the compass head ensure precise accuracy. Alvin is one of the primary sources for drafting supplies and drawing equipment in the country. Creative Coldsnow is a pround retailer of Alvin graphic arts, drafting and fine arts products.