Plastic Ballpoint Pen With Currency Verification Function，LED Light Ballpoint Pen: Product Description: You can write with the pen to invisible ink. With LED light pointer. It can illuminate your message. Application: messages, invisible tattoos. Specification: Material: Plastic Dimensions: 13cm/5.12in Color: sliver Quantity: 1 Pc Package includes: 1 x Ballpoint Pen School Supplies:Plastic Ballpoint Pen with Money Detector Practicality:Stationery is mainly designed to facilitate people's learning, writing and recording, so practicality is its most basic characteristic Aesthetics:With the continuous improvement of people's concept of aesthetics, the aesthetics of stationery is also increasingly important, modern stationery to meet the practicality, but also pay attention to the appearance of the design and color collocation, in order to attract consumers Easy to Carry:Stationeries are usually lightweight and easy to carry, and can be used in different occasions, such as schools, offices, etc Diversity:The types of stationery is very rich, including pens, paper, notebooks, sticky notes, folders, etc., each kind of stationery has its own special purpose and characteristics, in different occasions can play different roles