Grounded Adapter AUS NZ China

Do I need a grounded adaptor? If your North American appliance plug has two flat blades and one round pin, your appliance is grounded. Modifies the following grounded appliance plugs to fit Australia/New Zealand/China electrical outlets: Continental Europe (requires model GGC Ground Collar when used with model SP2 EuroSurge Surge Protector or a Continental Europe (Schuko) plug to complete the ground connection.), Israel, Italy, India/Middle East (5 Amp), North America, Switzerland and United Kingdom/Hong Kong.

Dimensions: 2X3X4.5