This is a Creutz curling iron (genuine) 38mm. It has a temperature adjustment function. There are no problems with use, but there is discoloration on the inside (please check the images). *Operation confirmed I wiped it with alcohol before listing it. Since it's 38mm, you can create loose, fluffy curls for a natural finish. [Regarding Transactions] I have checked each part before listing, but there may be oversights. Please feel free to comment if you have any questions. Even unused items may have very slight scratches or stains due to long-term storage. Please check the images carefully before purchasing. Instant purchase OK, no comments needed. We will pack and ship carefully. We may use recycled packing materials. Thank you for your understanding. Please refrain from purchasing if you are looking for a perfect product or are very sensitive, as these are personal collections, stored items, and unwanted items. There are also used items, old items, vintage items, and antique items. Please purchase only if you understand. No claims and no returns unless it is clearly our mistake. Also, please refrain from excessive price negotiations. In that case, we will not respond to comments. We strive for smooth and pleasant transactions. *Regarding Payment There are cases where those who pay at convenience stores cancel after purchase without paying. If payment is not made within 24 hours after purchase, we will cancel the order due to concerns about future troubles, so please understand. If there is any reason and you will exceed the deadline, please let us know the reason in advance, and we will not cancel even if you exceed the deadline, so please rest assured.