The diaphragm is a shallow rubber cap with a rim made of a fine, flexible spring (Figure 4.1). It fits snugly and comfortably across the upper vagina, covering the entire cervix, thus preventing sperm ...
The cervical cap is a small, deep latex cup with a firm but flexible rim around the open end. It is 1 1/4 to 1 1/2 inches long and looks like a large rubber thimble. It fits snugly over the cervix and ...