Revo Hemera XS is a compact dual-drive extrusion system. Its 92g lighter and 11mm shorter than classic Hemera, so it can move faster on your 3D printers motion system with less inertia, reducing print artefacts such as ghosting. A specially designed heatsink makes it compatible with Revo Nozzles, and with the addition of a Hemera HeatBreak (sold separately) it works with the E3D V6 ecosystem, too.