2 colors, 1 marker, unlimited 3D fun! The Color Loco Color Splitz 3D Pens Set is a unique activity kit that lets you create eye popping 3D artwork. The exciting set from Educational Toys Planet includes innovative 2-in-1 pens. Each pen features 2 vibrant colors. Hold the pen one way to use a single color, or tilt the pen and draw with two colors. The unique layered color design creates an awesome 3D affect. Color Splitz 3D Pens Set is a great way to encourage artistic expression and fine motor development. Color in an extra dimension!