Pentel Refill Lead Extra strong Hi polymer in Tube of 12 x HB 0.7mm Ref 50 HB, Count (Pack 1)

Brepen

Super hi-polymer pens 0.7 mm. Available in different hardnesses, B, 2B, H and 2H Material is a mixture of synthetic resin,graphite and carbon. Very dense structure ensures a deep black line and precise line thickness. Supple and break-resistant. Length 60mm. Tube with 12 pieces

Euroffice

0.7mm super hi-polymer refill leads for mechanical pencils. Extra strong slow wear rate dark colour. Great for drawing and shading. Grade: HB. Pack contains 12 tubes with 12 refill leads per tube. Pack of 144. Ideal for paper, tracing and drafting media.

Zoro Tools

Hi-polymer leads, suitable for use on all paper, tracing and drafting media. Packed as single tubes of 12 leads or 12 tubes of 12 leads. Grade - HB.

Amazon

Pentel® - Super Hi-Polymer Lead Refills, 0.7mm, HB, Black, 12 Leads/Pack - Sold As 1 Pack - HB lead is guaranteed to scan for tests.