Pinit Pentel Super Hi-Polymer Mechanical Pencil Leads 0.5mm HB(0)No Reviews yet SKU: PEN-C505HB $1.39 Quantity discounts available QuantityPrice Quantity -+ Add to Shopping Cart Details Refill your mechanical pencils with quality, super hi-polymer graphite leads. 0.5mm size is great for general writing. 12 leads per package. HB hardne... Details Back DetailsRefill your mechanical pencils with quality, super hi-polymer graphite leads. 0.5mm size is great for general writing. 12 leads per package. HB hardness. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review