MakerBot 900-0055A PLA Filament for SKETCH Classroom 3D Printer 5-Pack, Colour Blue, Yellow, Red, Green Gray, Filament Diameter 1.75mm, Filament Material PLA, Compatibility MakerBot SKETCH. Easily print your designs with the 2.2 lb 5-pack of 1.75mm PLA Filament for SKETCH Printers from MakerBot. Designed specifically for SKETCH Classroom printers, it is ideal for first-timers looking to learn more about 3D printing.