The US Plug Adapter 4 Pack is a set of Type A plug adapters designed for use in the USA, with input voltage of 250 volts and output voltage of 110 volts (AC). These white adapters are compact in size at 1.57 x 1.38 x 0.59 inches and come with a 2-year warranty. The package includes a manual for power strip EU UK US plugs, making it convenient for travel to American destinations. Ideal for those need to convert European to American plugs for their travel needs.