Lelo know how to make you buzz and these amazing Luna Beads are no exception. If it's stronger pelvic floor muscles you need, then the Luna Beads will give you all the enhancement you require. Two different sets ensure that you build the muscles over time. Starting with the lighter weighted ones and moving onto slightly heavier ones once you've got the hang of it. Simply pop them in and let your muscles get to work. The more you wear them, the stronger they will make you. Exercise never felt so good! **Products are only under warranty if you keep the card and/or number for your LELO product**