Total Value: 1.111110 Mega Ohms 7 Decades Box Length: 19.25in Controller Face Length: 5in Box Heights: Narrow Side (Front): 1.88in/ Taller Side (Back): 2.75in The decade resistance box with 7 decades is a sturdy tool that has a total value of 1.111110 Mega Ohms and a tolerance of +/- 1%, 1 Watt. It is a useful tool for simulating various electrical values.