Cervical Dilatation and Effacement Simulators, Set of 6The Life form Cervical Dilatation and Effacement Simulators provide lifelike simulation of cervical examination prior to birth. Every effort has been made to provide exceptional realism so that the visual and tactile sensations experienced provide a positive transition to patient procedures. The set consists of six separate 4 in. W x 4 1 4 in. H x 4 3 4 in. D pelvic blocks. The external appearance of all six blocks is identical, with the variations