Because rose vibrators are made of porous materials

One thing to keep in mind is that you should be careful with your rose shape vibrator if you share it with a partner. Because rose vibrators are made of porous materials, they can't be completely disinfected like silicone or hard plastic toys can, so they're better suited to solo use unless the user is dedicated to cleaning and sanitizing them regularly.If you decide to use a rose vibrator with a partner, we recommend using a condom for hygiene reasons. This will also help protect against transmitting sexually transmitted diseases (STDs). For example, if one person has an STD and transmits it through vaginal fluid when using the toy on themselves or someone else's body part (like their mouth), then this could spread the disease onto anyone else who uses that same toy later—including other partners!