Enlarged approximately four times, this plastic model dissects into four parts. The detachable petrous portion of the temporal bone reveals the middle and inner ear chambers. Also removable is the tympanic membrane with malleus and incus, and the attach..

Fully assembled, full-size model shows canal and inner ear mechanisms. 3-3/4" x 2-1/2" x 2-3/4" without base. Card size: 6-1/2" x 5-1/4".