ALVINSK360-6 30 Degree/60 Degree 6 Inch Smoke Ink Triangle

Alvin, SK360-6, 6" Smoke-Tint Triangle Ruler, Math Geometry Tool - 30/60 Degrees

ALVIN - Smoke-Tint Acrylic Triangle Ruler, Multipurpose Tool for Drafting, Design, and Architecture, Great for Machining and Woodworking (8" 30/60 Degree)

Pacific Arc Drafting Triangle, 4-inch, 30/60/90 Degrees, Clear Acrylic