Description: <;br/>Using this invisible ink pen, only can you see it until shining it over where you wrote. Very interesting and bring fun for kids. <;br/>Harmless and flavorless ink, You can write everywhere:T-Shirts, paper, skin and any surface. <;br/>The inks is durable but washable. very safety to use. <;br/>The magic pens have the UV light installed in the cap so you don't need to buy a spare light, which also comes with battery in it, very convenient to use. <;br/>Specification: <;br/>Material:Plastic <;br/>Color:Random Color <;br/>Pen Length:13cm/5.12''(Approx) <;br/>Quantity: 6Pcs <;br/>Warm prompt: <;br/>1.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. <;br/>2.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding! <;br/>3.Invisible Ink Pen only,other accessories（if any）irrelevant demo in the picture are not included. <;br/>Packaging includes: <;br/>Invisible Ink Pen x 6 (without retail package)