Zorpia&reg; 6 Pcs Assorted Colors Pocket Protector for Pen Leaks - Medical pencil case pen bag Pocket protector for doctor (Black) No self-respecting number cruncher can afford to be seen without one of these fashion classics. Can hold up to 4 pens. Fits most shirt pockets Fits perfectly inside shirt pocket Protects shirt from broken and leaky pens 3-3/8" x 6-1/4" in size, great for hospital, office and school use