Our eyelash curlers are carefully formulated from ABS. Designed specifically for rapid heating and shaping. The usage method is extremely convenient: 1. Press and hold the power button for 1.5 seconds to turn on the device. Start preheating (about 30 seconds). A green light indicates low temperature and a blue light indicates high temperature. 2. Curl your eyelashes from bottom to top. Press the base of your eyelashes for 3 to 5 seconds. 3. After pressing the root， slowly move the handle upwards at an Angle greater than 90 degrees. 4. Raise your hand and then release it gently. 5. After use， apply mascara serum. The effect will be better. 6. When starting up， if the red light is on， please connect the charging cable to charge. When charging， the indicator light is red. After being fully charged， the indicator light turns green. Once fully charged， press for five minutes each day and you can use it about ten times. And it can keep the eyelashes curled and not flat for a long time. With the long-lasting styling technology， the eyelashes will be curled and charming all day long.