Animation Blinder for Variable Resistance Trimmer Receitor In animation we find: A screwdriver goes into the Resistor Trimer and rotates it.In addition to a three-dimensional model of the Heater Resistor and screwdriver All this for only half a dollar!!The price will be changed after a month hurry to get it before it's too lateFor inquiries, please contact me on e-mail lebikyounes09@gmail.com