Ombrelle 250


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Modified T shape.Polyethylene vinyl acetate 'T' with two vertical bars projecting downward from the midpoint of the cross arms, meeting in an open sleeve that is free to slide around the central stem. The stem has been wound with 250mm2 of 0.3mm copper wire. Two monofilament polyamide cervical threads (black) attached at cervical end. See p. 263 of Intrauterine Contraception: Advance & Future Prospects.