How the Contraceptive Cap Works
The Oves contraceptive cap is an anatomical barrier.  It is a very
fine and very supple dome that
covers the uterine cervix.
It acts as a barrier, preventing sperm from making contact with the ovum.
It may be left in place for 3
consecutive days.
The Oves cap is a disposable product.
3 sizes are available: 
a 26, 28, 30 mm cap.  The 28mm cap fits the vast majority of women.  Your doctor or health care
professional will determine the right
size