Pentel Hi-Polymer Leads 0.7 mm leads film tube of 12 no. cf-7
Refill leads to fit the complete range of Pentel Mechanical Pencils. The composition of hi-polymer lead is synthetic resin, graphite, and carbon which give a very strong and flexible lead. Diameter sizes: 0.3mm, 0.5mm, 0.7mm, 0.9mm. Also, blue and red in 0.5mm size. Twelve leads per tube.