Pilot Dr. Grip Series Dr. Grip series established a new field of writing instruments to reduce muscle and cramping fatigue. Weight balance toward the center of gravity allows for optimal balance and its state of the art comfort grip requires less grip pressure allowing the hand to relax while writing. Both stylish and comfortable, this writing instrument is very popular among people who take notes during lectures, engage in hand written projects, and people who suffer from arthritis or hand cramp. Dr. Grip Full Black Series 10 or 100 per order ($ 8.08 per pen) 0.7 mm ball Oil based ball point pen. Silicon rubber comfort grip. Black Ink. Refills available in black, blue and red in sizes 0.7mm or 0.5mm (10, 100 or 1000 per order) ($ 1.10 per refill) Full Black (All Black Accents) Full Black (Blue Accents) Full Black (Red Accents) Full Black (Red Accents)