Knox Gear 3D Printing Pen Replacement ABS Filament (1.75mm， 8 Colors， 32-Feet per Color)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>ABS Plastic Filament</li><li>Matte Finish</li><li>Long-Lasting &amp; Impact Resistant</li><li>8 Colors - Green， Brown， Grey， Black， Red， Orange， Blue &amp; Yellow</li><li>Compatible w/ the Knox 3D Printing Pen &amp; most other models of plastic printing pens</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51DBqedk9PL.jpg" noproxy>