Thank you for viewing. Hair Beauron, a straight hair iron, with 7 temperature settings and a lock function. - Model Name: LUMIELIA - Temperature Settings: 40, 80, 100, 120, 140, 160, 180 degrees Celsius - Lock Function: Yes - Serial No. available I believe I purchased it 4 or 5 years ago. Since I used the iron without using hair spray, the plates are in good condition, but there is some discoloration and burning due to heat. Please check the photos. Please check the serial number in photos 3 and 4. Thank you.