This four-piece adapter plug set connects your dual-voltage device or voltage converter to various outlet types worldwide. This set includes: Adapter for U.K., HK, Singapore (3 square pins) Adapter for Europe plug (2 round pins) Adapter for North, Central/South America and China (2 parallel flat pins) Adapter for Australia, New Zealand (2 angled flat pins) Carrying pouch These are adapter plugs only, they do not convert voltage. A separate voltage converter may be required.