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Reviews around option (5.00 of 5)
School Smart Big Digit Count up/Count Down Timer, Large LCD, (1) AAA Battery, 2-1/2 X 2-1/2 in, Black
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Again, with these being the only real cost efficient option.
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These really the one of the worst products I have ever used, but there are not very good options for reasonably priced compasses for a class set
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