Pentel EnerGel Deluxe Liquid Gel Pen, Medium Line, Metal Tip, Blue Ink, Box of 12 (BL57-C) Durable 0.7mm metal tip delivers smooth, medium lines Best qualities of permanent gel ink and quick-drying liquid ink. Vivid ink dries without smearing Ideal for left-handed writers Conveniently refillable with Pentel LR7 refill