High quality packaging, good motors, cables did not match the documentation. You may have to use trial and error (don't refer to the 1A, 1B, 2A, 2B wiring comments they gave in response to another customer's question). I've spent more time getting them to work than I care to admit, that's all you need. Requires: Elegoo Stepstick A4988 Stepper Motor Driver Module + Heatsink for 3D Printer, CNC Machine or Robot Repair (5 Pack) High quality drivers that make driving easier. Best price I've seenโฆ