According to Matter and Form, the Structur3D Discovery Paste Extruder: “This is a little attachment that works with your 3D printer and allows you to print in pastes or semi-liquid materials (as opposed to hard ABS plastic). It’s like a key that unlocks the potential of your 3D printer and that can mean a lot for educational maker spaces and classrooms (not everything your kids will want to make should be hard plastic – this device makes sure that material isn’t a limit when it comes to students and engineering).”