Staedtler Mars Professional Engineering Triangular Scale 12″ Length – Aluminum – Silver – 1 Each (987M1834BK)

Professional-quality Engineer’s triangular scale features a metal construction using solid-extruded aluminum. Solid-extruded aluminum is resistant to all weather conditions. Color-coded grooves allow an accurate selection of the desired scale. Easy-to-read imprinted graduations are designed to hold up against fading.