Editing Cervical cap (section)

===Stopes recommendations===
The type of rim cap recommended by Stopes in the 1920s with a high dome of thin rubber was experimentally revived by Lamberts in England in 1981<ref>Chalker2, pp,174-5</ref> and called the "test cap". It came in six sizes and its light weight meant that it was not as apt to be felt during sexual activity. It was not received well. Some thought it was too flimsy and more likely to dislodge, but Stopes had (in the 1920s) claimed just the opposite for this design, as did the director of a woman's health center who tried it out.