Pentel EnerGel Deluxe RTX Liquid Gel Ink Pen Set Kit, Pack of 3 with 4 Refills (Violet - 0.7mm) igh performance ink technology combines the best qualities of liquid and gel ink for a super-smooth writing experience 0.7mm stainless metal tip writes medium lines Barrel and ink color: Violet Retractable and conveniently refillable with Pentel LR7-V ink refills. Deal includes 3 BL77-V pens and 4 LR7-V refills