I just bought this at the end of last month. I tried it once, but I don't think I'll use it much because getting a lash perm is easier, so I'm selling it while it's still in good condition. From Amazon: Hot Eyelash Curler, 2-in-1 USB Rechargeable Eyelash Curler, Clamping Type Eyelash Curler, Hot Curler, Eyelashes, Face Care, Three-Stage Temperature Adjustment, 10-Second Rapid Preheat, Automatic Power Off, Temperature-Sensing Silicone, Easy to Carry, Lower Eyelash Curler (Black) [Evolutionary 2-Way Type! Ultimate Beautiful Curls Created by Thermal Effect] Unlike commercially available eyelash curlers, this hot eyelash curler is a 2-way type that can be used for both false eyelashes and natural eyelashes. By clamping both false eyelashes and natural eyelashes with the clip, you can achieve a natural finish with a sense of unity, while also creating curls by applying the arc-shaped comb close to the roots. Furthermore, you can use it in conjunction with mascara to curl your lashes even more. *The way your eyelashes curl may vary depending on the amount, texture, and length of your lashes. [3-Stage Temperature Adjustment & 10-Second Rapid Preheat] Compared to 1-stage hot eyelash curlers, this eyelash curler has 3 temperature settings, and you can check the temperature by the color of the power button, with temperature settings ranging from 60 to 80 degrees Celsius. It can be used for various eyelashes, from soft to hard lashes. *If you are using it for the first time, please try it from a low temperature and use it at your preferred temperature. In addition, the eyelash curler has a high-performance, high-thermal conductivity special IC chip built-in, and preheating is completed in about 10 seconds. Even on busy mornings, your eyelashes will lift up, resulting in attractive eye makeup. [Safety Design, Automatic Power Off & Burn Prevention] If the hot eyelash curler is not used for 15 minutes, it will automatically turn off, making it safe and economical. It is safe to use, as it prevents you from forgetting to turn off the hot eyelash curler when you are busy in the morning or rushing out. In addition, the comb of the hot eyelash curler has an uneven design that extends the distance between the heater and the eyelids, avoiding damage to the skin and high-temperature contact with the eyelids. [USB Charging & Convenient to Carry] The hot eyelash curler has been improved from battery replacement to USB charging, and it uses a large-capacity lithium battery, which can be used for 25 days with 5 minutes of use per day on a full charge. In addition, it has a slim design that makes it easy to carry, and it weighs only 33g, making it easy to carry around for business trips, travel, dates, and the office!