20ml Multifunction Magics Led Lights Light Yanchao Invisible Pen Feature: 100% brand new and high quality. Quantity: 2PCS Boys Girls Great Party bag fillers toys for kids. Writes on most surfaces. With built in Ultra Violet Light, Kids will write plenty of secret messages to each other and its not visible to the naked eye turn the UV light on the writing appears Note: You can write on most surfaces, but whether it can stay on the surfaces It depends on what kind of the material you write on. If you write on the papers, it can stay on permanent; if you write on the metal or plastics It may couldn't last long, because it will be erased easily due to the characteristic of the metal and plastics. Size:about 13CM Material:Plastic Package Content: 2X Secret Message Pen For more low-priced goodies clickJannly Package Includes ：2x Highlighter Size: 5.51*1.57*1.18 Inch A comprehensive set of essential tools for DIY enthusiasts and professionals. Ideal for home repairs, maintenance, and construction projects. A bundle of must-have home improvement tools at an unbeatable price. Upgrade your toolbox with this comprehensive set.