Adjustable Protractor Triangles

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Adjustable Protractor Triangle
Adjustable Protractor Triangle
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This triangle is made of heavy, clear acrylic plastic. It's accurately divided from 0° to 90° in half-degrees. The locking screw adjusts to hold any angle desired. Available in 8" (20 cm) or 10" (25 cm) triangle.

Alvin is a registered trademark.

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