Sold in lots of 864 @ $0.31 each. Durable plastic rulers feature double beveled edge with pencil groove. Raised calibrations show 1/16 inches on one edge, millimeters on the other. Holes allow for storage in ring binders. Assorted colors: White, Yellow, Red, and Green. Durable plastic rulers feature double beveled edge. Raised calibrations show 1/16 inches on one edge, millimeters on the other. Flat, assorted colors; Red, Green, Yellow and White.