Not sure of the measurements, but this protractor is small enough to fit completely in the palm of my hand. I was expecting it to be maybe twice the size. Looking at this I also understand that metal would be the best option in the long run as this plastic is not very durable. Well, for the price, everyone gets this. never mind it will last so long and then it's time to find a more durable one! It will do the trick while it lasts! If you found my review helpful, thanks for letting me know!
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