Drawing shows different sizes of common items in millimeters (mm): a sharp pencil point (1 mm), a new crayon point (2 mm), a pencil-top eraser (5 mm), a pea (10 mm), a peanut (20 mm), and a lime (50 mm). Also shown is a 2-centimeter (cm) ruler that shows 10 mm is equal to 1 cm.
