1.75mm ABS Filament
Dual-head extruder are trying to bring us colorful prints, it's great. Print from Granule material and Multicolor print allows Reprap to print Rainbows, it's wonderful.
RobotDigg offer a 400g Pack ABS Filament in 1.75mm not only for testing but also for your Colorful prints.
Red/Green/Blue/Olive each color 100g, 1.75mm ABS pack
It's only 0.4Kg added to your existed order.