The present disclosure relates to an occlusion device for blocking a biological tube, the biological tube being prone to a peristaltic wave having a wave length, and where the occlusion device comprises at least two sections, where each section is connected by at least one narrowing to at least one other section. The occlusion device is of an elastic material, and each section is configured to deform when a force is applied by said peristaltic wave, and the length of at least one of said at least two sections corresponds substantially to the wave length of said peristaltic wave in said biological tube, so as to absorb said peristaltic wave. The disclosure relates to reversible contraception of female and/or male gendered species intervening with the biological tube, which are responsible for transportation of fertility fluids, such as the transportation of spermatozoes or oocytes in for example the human reproductive system.
