A step up from the original 3 Series the ZEBRA 4 Series provides a more weighted experience with enhanced writing comfort. A balanced brushed stainless steel casing with a comfort rubberized grip makes this the ideal pen accessory. Refillable with F-Refill series Pen Sub-Brand & Product Family: F-402®; Pen Type: Ballpoint Pen; Pen Style: Retractable; Pen Tip Type: Conical.