About Product:C- 120 Marking Pen Cap of a Pen with Pen Holder More Convenient to Carry Any Object Surface Can Be Written Such as Carton Plastic Tape Wood Ceramic Tile Glass Steel and Other Materials Fiber Nib Conventional round Head Oblique Head Need to Be Customized Ink Quick-Drying Color Bright Durable Waterproof Colorfast cover Tightly after Use Cap of a Pen