Something of a minor cult classic. A nice solid stainless-steel retractable ballpoint with a knurled plastic grip - at a bargain price. Fitted with 0.7mm fine or 1.0mm medium black refill. Zebra Zebra 1.0mm Stainless Steel Ballpoint Pen Black PK1 - Part number: 21971 - Category : Default Category Zebra F-301 Deluxe Retractable Ballpoint Pen 1.0mm Tip 0.5mm Line Stainless Steel Barrel Black Ink This sleek ballpoint pen provides an excellent writing performance with its slender design and sculptured finger grip. The F-301 is refillable with an F refill.