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20-PREGNANCY Calculator

Base wheel: 4" diameter x .020". Top wheel: 3" diameter x .020" white vinyl plastic calculator. This birth date calculator will allow a doctor to determine the approximate date for a bab's birth. Shows 1st, 2nd, and 3rd trimester periods. 1 color ink, same, on base and top wheel, front only. Accuracy +/- may cause 1-3 day variations. To print backside, please add additional color charge.

Ad copy area: front: 7/16" high x 1 1/8" wide above centered eyelet and 3/16" high x 1 1/8" wide below eyelet.

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