A menstrual cup is a reusable, bell-shaped device made from flexible materials like silicone or rubber. It is designed to be inserted into the vagina to collect menstrual fluid during a woman's period. Unlike traditional sanitary pads or tampons, a menstrual cup can hold more fluid and can be worn for up to 12 hours, depending on the flow. To use a menstrual cup, it must be folded and inserted into the vagina, where it opens and forms a seal against the vaginal walls. After several hours, it can be removed, emptied, and cleaned before being reinserted. This eco-friendly option reduces waste and can save money over time.