Purchased Christmas present from China for use in Australia - plug is different

The plug that came with the item has two straight prongs with no holes in the end of them. They are too straight to fit into an Australian 3 pin socket (we also use some two pins in the 3 pin holes but the prongs are angled to suit entry into Australian 3 pin sockets). Can someone please tell me what sort of adaptor I have to purchase - none of the photos I have seen on the web show me enough detail of the chinese plug to know which adaptor I have to buy to use the item in Australia.