Pro Art Drafting Set 6pc - Includes: compass, spare lead, 6" ruler, two triangles, and 180 degree protractor. Ruler, triangles, and protractor are crystal clear with black measurements. Triangles and ruler feature gradations in inches and millimeters. Compass uses standard .7mm mechanical pencil lead and makes circles with a radius measuring from .25" to 5.5". Closed trifold case measures approximately 3.5"x 7.25".