It features a stepless variable extrusion speed control that allows for dialing in the perfect flow. The low temperature can protect your kids anytime. This drawing kit comes with a lightweight, ergonomic stylus, 2 colors of ABS plastic, and a 1000 mah battery inside. It contains a USB cable for recharging that you can use it up to 1 hour after fully charged. Turn your ordinary drawings into 3D works of art. Turn your ordinary drawings into 3D works of art Stepless speed slider lets you regulate flow for optimal control of material while you're drawing Ultrasonic sealed nozzle is nearly clog-proof and provides market-leading durability The Super 3D Printing Pen is great for kids, artists, adult. Printing Material: PLA 78 inch PLA materials are included in the package (6 random colors).