Here's a link to ABS Pro http://www.formfutura.com/175mm-abspro-black.html

"Our ABSpro™ compound is a unique mixture of ABS reinforced with Styrene Maleic Anhydride and PolyCarbonate making an incredibly strong and even more impact resistant filament which enables you to make ABS prints with a remarkable fine detail. ABSpro™ is much stronger than any other ABS type of 3D printer filament and allows you to print in such a high detail that it outperforms any other ABS type of filament when it comes to printing precision. ABSpro™ even outperforms most PLA type of filaments when it comes to printing fine-detailed prints."