https://www.haljia.com/products/haljia-n20-dc-12v-30rpm-micro-gear-box-speed-reducing-motor-mini-gear-box-motor-micro-speed-reduction-motor-with-2-terminals-for-rc-car-robot-model-diy-engine-toy
HALJIA N20 DC 12V 30RPM Micro Gear Box Speed Reducing Motor Mini Gear
Features:Reducer motor, all-metal structure, copper gearbox, all-steel precision micro-gear, suitable for making various precision robot models and technology...