Auto rewind function activates with the touch of a button * The four electrical sockets are fixed, preventing tangled appliance cords when extending or rewinding the extension cord * On-off switch provides built-in overcurrent protection; overheating protection also included * Retracts smoothly, guided by 4 rollers * 40 foot 14/3 AWG SJTW cord is rated for maximum 1,875W/15A 125V AC, 60Hz