10-PK1201. One Dozen Pen Knives - Refillable Pen Knives Pen Knives Refillable Pen Knives (Assorted Colors) One Dozen Assorted Color Pen Knives that are refillable. Excellent Quality Pen and Razor Sharp Half Serrated Blades Price: 1 to 9     $ 22.50 PER DOZEN 10 to 19     $ 21.95 PER DOZEN 20 or more     $ 21.50 PER DOZEN Unit: PER DOZEN Quantity: