TruePower 6/3+8/1 25 foot 50 amp RV Power Cord w/Twist Lock Locking Connector Heavy duty solid copper wire AWG #6(3) #8(1). ETL Certified 4 conductors 50A NEMA 14-50P straight blade male plug body with grounding pin 50A NEMA SS2-50R female Twist Lock receptacle 25 foot in length