Thank you for viewing. This is a 0.5mm HB lead refill, Silver G lead, for Earth Pencil mechanical pencils, containing 30 leads. It is made by the now-defunct Earth Pencil, and according to my research, there are no other listings for this exact product at this time. The surface of the lead has a silver coating to prevent your hands from getting dirty when refilling. This model is a counterpart to the Koh-i-Noor Gold lead, with silver lead and a triangular case, as opposed to the gold lead and rectangular case of the Gold lead. Although it is a new, unopened item, the appearance shows age-related scratches, stains, and wear. It is a Showa-era retro item. #Shiro'sStationery We also offer combined sales. For those who understand, Thank you. Type...Mechanical pencil lead Lead/Darkness...HB