30Amp extension cord with NEMA L14-30P to L14-30R plug, SJTW 10AWG cable 125/250 volts, 7,500 watts, with tightly lock. Power cord is Anti-Cold weather rubber which stays flexible in cold weather. Avoid the trouble of straightening frozen power lines. Protect against power outages caused by a variety of severe weather conditions, such as hurricanes, snow, and bad storms. Apply to running power from generator to house. Operating your generator to a transfer switch panel or inlet box. The yellow color makes it visible. Unaffected by rain or the elements other than discoloration from the sun.