The grey Ultrafuse ABS Fusion+ is a reliable filament with a diameter of 1.75mm. It contains Polyscope XILOYTM: a high quality material designed for 3D printing. ABS is a very strong plastic with which you can print hard and heat-resistant objects directly on glass. This filament offers you excellent print quality and is not prone to warping.
The ideal print temperature is 240 to 260°C. A heated bed is required for printing with ABS. For best results, use a heated bed of 100 to 110°C.
Read more about printing with ABS filament
here.