Pentel Super Hi-Polymer Lead Refill Value Pack, 0.5 mm; 0.7 mm, HB, Black, 30/Tube, 6 Tubes/Pack

Stock up and save! With two lead diameters, you can cover both of your favorite pencils with one super-strong Hi-Polymer® refill. Each lead provides excellent break-resistant performance and smooth, uniform marking with reduced smearing. Pentel® HB lead also is guaranteed to scan on standardized tests.