This DirectGlow LLC UV Marker Pen allows for vibrant and striking artwork to be created with ease. The multicolor Invisible Ink Marker in blue, red, and yellow is perfect for creating neon designs that pop under blacklight. Made in the United States, this pen has a smooth finish and is not handmade or modified. With its precise tip, it is ideal for drawing and lettering on a variety of surfaces. The pen does not come with any custom bundle and is a great addition to any art supplies or crafts collection.