Description The core selling point of this pen set is its multi-functional design. Not only can it be used for writing and drawing, but it also features a UV light that can be used to detect counterfeit bills and other documents. The pen's invisible ink is another unique feature, making it perfect for covert operations or simply adding a touch of mystery to your writing. Features -Color:Silver-Material:Steel, Plastic -Size:13.00X12.00X1.00cm/5.11X4.72X0.39in-The design of the pen is multifunctional, incorporating UV light and invisible ink, practical and convenient. -The pen is made with safe and wear-resistant material to ensure durability and longevity. -Its compact size and lightweight design allows for easy to carry and store. -Each set includes enough pens, making it suitable for sharing or personal use. -Smooth surface writing pen, comfortable grip and this pen is practical and convenient to use. Packing list: 3 x UV Light Pens