They are called birth balls. They can be purchased from the International Childbirth Education Association (ICEA). They have two sizes a medium (item no. ND1595) and a large (item no. ND9715). They are both $35.95 plus shipping and handling. Call 800-624-4934 or 612-854-8660 for ordering information. Mary A. Hyde, MSLS ([log in to unmask]) Public Services Librarian Resource Center American College of Obstetricians and Gynecologists 409 12th Street SW P.O. Box 96920 Washington DC 20090-6920 202-863-2518 (ref. desk) 202-484-1595 (fax) >>> Angelique Mattioli ou Marianne Heimann <[log in to unmask]> 02/05/98 12:42pm >>> Dear Team, Please, help ! A young gynecologist is looking for references about physiotherapy during pregnancy or at delivery with those big balloons (we used to call them "kangaroo" in Belgium when I was young) used by children on the beach to jump with it... Have you ever seen something about it ? How are those balloons called ? Thanks a lot for any help. Angie Angélique Mattioli, IPG-LIBRARY, Institut de Pathologie et de Génétique asbl, allée des Templiers, 41, B - 6280 LOVERVAL +32(0)71.44.71.72. Fax : +32(0)71.47.15.20. [log in to unmask] *** *** ***