Need 3D Drawing Pen filament refills? Here's the best filament refill we have for you which you have just found. Our color filament quality is so good; you would want to keep drawing your 3D art with it. Be as creative as you can! You are enabled; your drawing art just came to life. It feels real, it looks real and the color quality is the best material you can buy. Available in variety of fun colors! Our color filaments fit almost all standard 3D drawing pens. Each bag contain PLA-ROLL filament with total measurement of 10 meters.