The first protractor I bought was sold by Changda Technology. Basically it was junk and for the same price as Shinwa. Shinwa is a product that is far superior in every way. You can buy both just for fun to see the ridiculous difference between them. If a Chinese Changda was only $2 I'd say you're getting fair value for your money. For the same price as a real protractor, it's just a waste of time to buy and return. Yes, it's made by an instrument company in Illinois, and yes, it looks great because of the Japanese name. But it's a good protractor
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