https://alexnld.com/product/dorcrcman-dm-s0603d-6kg-270-degrees-high-torque-plastic-gear-digital-servo-for-rc-airplane-robot-car/?hilite="6 pcs PZ 5g Servo Analog Plastic Gear 500g 0.5kg Torque TJC8 2.54mm 3P for RC Drone Car Robot Airplane Aircraft Fixed Wing Plane"