Decade Boxes use a Series of Capacitors, Resistors or Inductors to Simulate very Specific Electrical Values. They can be Quickly and Easily Substituted into a Circuit and Replace any Standard value Component. Decade Boxes are ideal for Troubleshooting Circuits and Verifying the Accuracy of Test Equipment, Both in the Field and in the Lab here We have this type of Items . Decade Resistance Boxes Six Dials (100 Ohms to 100M Ohms) |Four Dials (1 Ohm to 10K Ohms)| Eight Dials (1 Ohm to 100 M Ohms )| Nine Dials | Decade Inductor Four Dial ( 1 MH to 10 H) | Five Dials(0.1 MH to 11.111 H) | Six Dials (0.01 MH to 11.1111 H) | Decade Condensers Five Dials (0.0001 uf to 10 uf).