DE 6 Pcs Black Vinyl Pocket Protector for Pen Leaks Material: PVC Plastic Size: 3-3/8" x 6-1/4". Can hold up to 4 pens. Fits perfectly inside shirt pocket, fits most shirt pockets. Protects shirt from broken and leaky pens. Quantity: 6 Pieces ( Black ) Fits perfectly inside shirt pocket, fits most shirt pockets. Protects shirt from broken and leaky pens.