3D Printing Pen, 3D Driller 3D Pen for 3D Printing, Drawing and Doodling with PLA Filaments (Silver) ?Triple Spped Control - 3D Driller at your own pace with triple speed control ?Automatic Unload System - Uload itself automatically after 3 minutes of non-working ?Unibody Design - Unibody Design with high strength and heat resistance ?Enhacend Cooling System - Filament cools off immediately, making it possible to doodle in the air Package Content: 3D Diller Pen X1, Power Adapter X1, PLA Filament X2, Quickstart and Manual Guide X1