Transparent plastic material, transparent and durable.This protractor will not break easily and will last for a long time.
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Clear color makes measuring easy and allows you to see numbers and letters on the page through the protractor.
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The circle protractor is a learning tool that kids need when they are doing homework and is also a great math tool for office school students.
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Note: Do not rub with sharp objects, protractor away from fire and high temperature
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