Thank you for viewing! This product is a Tanome-ru original TANOSEE mechanical pencil lead refill, 0.5mm HB, 1 set (400 leads: 40 leads x 10 cases). I have one set (40 leads x 10 cases) in stock, so I will discount it by an additional 130 yen! (Effectively one case free) I also have many other items for sale, so feel free to comment! 【Product Features】 ★ Made in Japan lead. The case allows for easy one-touch lead insertion and removal. ★ "Slide-open case" for easy insertion and removal! 【Product Condition】 Condition: Purchased new and stored at home without being used. Notes: There are no noticeable scratches or stains. There are minor scratches and scuffs on the outer box from storage, but this does not affect the contents. Also, this is a used item that has been in someone else's hands, so please purchase only if you understand. 【Other】 Please feel free to ask if you have any questions. We also offer discounts for simultaneous purchase and combined shipping of multiple items, so please consider it. Bulk sale stationery writing instruments office supplies business use mechanical pencil lead refill