Super Hi-Polymer Lead produces crisp lines of consistent darkness smoothness and density in 0.9mm automatic pencils. HB hardness is equivalent to a No. 2 pencil and is excellent for all general writing including items to be faxed photocopied and electronically scanned. 0.9mm thick lead is perfect for young writers and first-time users of automatic pencils. Each super-strong lead writes as far as an entire wooden pencil and produces a dark line. A 30-piece tube is equivalent to 30 wooden pencils. • Lead refills for all automatic pencils using Pentel s Super Hi-Polymer lead. • Black. • 0.9mm. • 30 leads per tube. • Two tubes (60 leads) per pack. • Sold as 60/Pack.