This is a delightful massager that can be used for external and internal stimulation, with the optional warming function. The built-in heating core in the Svakom Anya can heat to 100 degrees Fahrenheit (38 degrees Celsius), which is close to human body temperature. This warm touch relaxes the skin and delivers heightened orgasm. The ribbed texture is soft for insertion but still has a noticeable edge for that something extra. Made of silicone and 100 percent waterproof.