2020 latest version: Prevent clogging??? No clogging problems: High quality ceramic nozzles ensure no clogging. Just twist the 3D tip to the left for easy removal. All this makes customers feel more at ease. 3D drawing templates and pvc drawing tablets: both can be recycled and help develop intelligence. Pen holder: You can place the 3D pen between the pen holdersEasy-to-use and child-safe?? Designed to fit children's hands. One-click to adjust the speed, you can choose the appropriate mode according to your painting skills. An LCD screen that lets you monitor material temperature and extrusion speed while enjoying your 3D model drawing. 1.2m USB cable, can be used flexibly even with mobile power supply 3 minutes standby: 3D pen enters standbyThe perfect gift for kids and adults? Suitable for 5 year olds or adults. (Children under adult supervision). 3D printing pens are the perfect gift for kids to help them improve spatial thinking, foster creativity, and develop artistic skills. It's also a great way for parents and kids to spend quality time together.