Each variable resistor kit contains 150 total potentiometers. 10 each of the following standard values: 100, 200, 500, 1k, 2k, 3k, 5k, 10k, 20k, 47k, 50k,100k, 200k, 500k, and 1M. Potentiometers are .1 watt, 20% tolerance and packaged in a reusable box. This is the perfect starter kit for any electronics hobbyist.