These excellent graphites offer great value for money. These too are triangular in shape to offer a comfortable grip and ensure that they won't roll off desks. HB leads are the most commonly used grade of pencil within education and this cost effective box provides you with 600 pencils to keep stockrooms equipped with the essentials. Buy two boxes and they will both fit snugly into a Gratnell tray. Grade HB. Pack of 600.