Chartpak Architectural Triangular Scale - 12" Length 1" Width - 1/16, 1/8, 1/4, 1/2, 1/32, 1 Graduations - Imperial, Metric Measuring System - Aluminum - 1 Each - White Adjustable Triangular Scale used by architects Rotating dial allows quick adjustment between graduations Graduations: 1/16, 1/8, 1/4, 1/2, 1:1, 2:1, 32 Scale is made with high-quality, satin-finish aluminum Size: 1"W x 12"L