Highly flexible stranded No. 30 bare copper conductor insulated with high grade EPDM. A paper separator is utilized to enchange stripability. Maximum conductor operating temperature is 105C in circuits not exceeding 600 volts. Minimum temperature rating -50C. Example, if a 10 ft length and a 25 ft length are bought, then you would receive 35 ft on one roll. Feet markings are indicated on the jacket of the wire.