Product Details:

Twist and Locking Type
Three 20 AMP Female Connectors - One 20 AMP Plug (NEMA L5-20R) "W" Adaptor.

Twist-to-Lock Molded Ends 20 Amp "Y" Adaptor  is one twist-lock plug and three twist-lock connectors in NEMA 5-20 configuration.

Wire: 12/3 SO
Length: 20 in (508 mm)
AMPS-VOLTS: 20A - 125V