Pentel of America, Ltd. Products - Hi-Polymer Lead, 0.7 mm, Medium, 3H, Black - Sold as 1 TB - Super Hi-Polymer Leads are designed for automatic pencils. Patented manufacturing process provides greater lead strength, a darker line and minimal breakage. 60mm length. Sold as 1 TB Manufacturer: Pentel of America, Ltd. Total percentage of recycled content: 0 Post Consumer Waste: 0 Country of origin: JP