Features: Small size, light weight, suitable for short-range printing Quite low running sound can make you sleep peacefully High temperature resistance, long service life, can run for 30,000 hours 80cm/31.5in motor extension cable is for your optional .Convenient to use, no welding or secondary extension. All parts are installed and debugged well, easily operate.Easy to install and simple structure. Specifications: Name : NEMA17 Pancake Type Stepper Motor Step angle: 1.8±5% /STEP Current: 1.5A/PHASE Weight: 400g Size: approx Please See Pictures Lead Screw: T8 8mm Rate Voltage: 3.3v Rated Resistance/Phase: about 2.2ohm Rated Current/Phase: 1.5(A) Screw Length: approx 300mm/ 11.8in Cable Length: Approx 800mm/31.5in Package Type: Motor with Cable/ Motor without Cable (Optional) Package Includes: 1xNema 17 Stepper Motor 1x T8 Lead Screw 300mm 1xTrapezoidal Nuts 1x4pin Cable or no cable note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.