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 & SKU Line: F-402 Pen Style: Retractable Pen Type: Ballpoint Pen Refillable Yes/No: Yes.