Westcott Engineers' Protractor Ruler, Dual-Scales Cm and Tenths-Inch, Back-to-Sc

Engineers' Protractor Ruler - 6-Inch with Dual Scales for Precision Drafting

Engineers' Protractor Ruler, Dual-Scales Cm and Tenths-Inch, Back-to-School, ...

Transparent 6-Inch Engineers' Protractor Ruler - Ideal for Accurate Drafting

Durable 6-Inch Transparent Ruler with Metric & Inch Scales for Accurate Drafting

Protractor Ruler, 6", 15Cm, Transparent (W-5)

Engineers Protractor Ruler 6 Inch Dual Scale Cm Inch Classroom Supplies