・I used this once during a student internship and have kept it stored at home since then. It has never been used clinically. ・This is a holder used when inserting wooden wedges. ・I've searched around, but it seems like this is no longer sold? ・KSK is engraved on it. ・Nowadays, wedges that are easier to insert between teeth are sold, so this type of holder may not be necessary. However, I hope that dentists who prefer the traditional wooden wedges will find it useful. ☆In light of recent return fraud issues, we do not accept returns or offer refunds. Thank you for your understanding.