The Merula Cup is made out of 100% medical-grade silicone and produced in Germany. It is round, with a rigid edge and a thin, soft body. The menstrual cup can be worn in a folded up state – only the edge needs to be open. The slight vacuum means the cup can be worn whatever the condition of the pelvic floor muscles. It has an adaptable, three-rung stem that can be shortened to ensure an individual, optimally comfortable length.