Alvin FT450-8 orange drafting triangle. Quality 8" drawing triangle is constructed of molded polystyrene plastic 0.10" thick, with double-beveled inking edges and double-beveled center cut-out finger lifts. Popular triangle's fluorescent light has an illuminating effect on the drawing by accentuating the edge. Supplied in poly bag with hanging hole. Made in the USA. Alvin 45/90 orange inking drafting triangle.