<br>Easy to install and disassemble, suitable for many projects at home and in your classroom. Great for robot toy, student lab project, STEM class, motor powered cars, engineering class and more <br> <br>Tips: Mini size, easy to install and save, put them in a sealed bag when not in use to prevent damp rust <br> <br>Note: Small parts, keep them far away from children under 3 years to avoid choking <br> <br><b>Features:</b> <br>Rated voltage: DC 3V <br>Rated speed: 15000 RPM <br>Motor size: 38 x 20 x 15 mm/1.5" x 0.8" x 0.6" <br>Shaft diameter: 2 mm/0.08" <br>Shaft length: 10 mm/0.4" <br>Material: metal <br> <br><b> Package includes: </b> <br>12 x 3v dc motor <br> <br><b>Customer service: </b> <br>If you have any question about our product, please click the“seller contact”button in your amazon account to email us, we will reply as soon as we can