This Valterra Mighty Cord (TM) 30 amp Power Supply Cord has 3 prong with twist lock. It measures 25 foot length.• NEMA Standard Male: L5-30P• NEMA Standard Female: L5-30R• End Type Male: 3 Prong• End Type Female: Female End• End Rating Female: 30 Amp• Wire Size: 12/3 AWG• Length: 25 Feet• Jacket Color: Black• Jacket Material: Rubber• With Carrying Strap: No 3 prong receptacle end 25' length Generator extension cords provide additional cord length for longer hook ups | Mighty Cord Generator 30 Amp 3 Pole Extension Cord, 25'