ErgoTwist Mechanical Pencil with Customized Grip - 0.7mm HB Lead (package of 2) Set of 2 ErgoTwist Mechanical Pencils. Adjustable grip twists and cushions to fight finger fatigue. Unique, patented mechanism twists grip left and right into optimal shape for the individual. Ultra-soft grip material and lightweight barrel offer minimal resistance for maximum writing comfort. 0.7mm lead produces crisp, medium lines of consistent density. Medium lead size is excellent for students, heavy-handed writers and all writing in general. Pentel Super Hi-Polymer HB lead is equivalent to a #2 pencil, guaranteed to scan on test, resists breaking and never needs sharpening. Refillable with Hi-Polymer Lead and Z2-1 refill eraser. One of the few consumer products to be awarded the Arthritis Foundations Ease-of-Use Commendation.