What is this?Infrared touchscreen pen is a stylus pen used for operating infrared touchscreen such as projectors. Stylus pens for touchscreen can be used for writing, clicking, education presentations, and other operations on the infrared touchscreen. Whiteboard optical touch pen, usually used for teaching, conference rooms, lectures, training, business presentations, etc.What will I get?Touch infrared screen pen, is in size of :16mm x 130mm/0.63-inch x 5-inch(D*L), 10mm/0.4-inch pen tips sizeIn the package of: 2pcs touch infrared screen penIs there any advantages of the product?Highly sensitive and high-precision stylus touch pen, soft, and does not harm the infrared capacitive touchscreen, used for electronic whiteboard, electronic display screen, and digital signature board.