The Construction Master Pro Trig provides construction professionals with complete trigonometric functions along with powerful right-angle solutions, circle, arc, dms, blocks, panels, and footings to help them quickly and easily solve complex construction-math problems. It saves time, reduces costs and prevents re-work. You can effortlessly work in and convert between feet-inch-fractions and metric units. Instantly calculate complex construction challenges for stair layouts, roofs, framing and much more. Full trigonometric functions with sine, cosine, tangent, arcsine, arccosine and arctangent. An Armadillo gear case is included. Construction Calculator, Portable, Length 5-5/8 In., Width 3-1/4 In., Depth 5/8 In., Display Digits 7 Main, 4 Fraction, Display LCD, Display Dimensions 9/16 H x 2-1/4 In.