Curling iron equipped with 4D Plus technology, power cord included - Model Name: Bioprogramming 4D Plus - Color: Gold - Power Cord: Included Thank you for viewing. This is a 26mm curling iron. I purchased a brand new, authentic one around February and used it a few times, but I'm selling it because the size of the curling iron didn't suit me. The curling iron itself was very easy to use and caused minimal damage to my hair! I have already registered the product, so the extended warranty is not available. I have used it a few times, so there may be some minor scratches, but it's in very good condition and can still be used without any problems. Please refrain from purchasing if you are sensitive to items that have been handled by another person. Thank you.