GREAT REPLACEMENT FOR YOUR CRACKED ADAPTER: This AC wall adapter plug keeps you from buying a completely new unit, just swap the old cracked adapter, your power adapter can works well as before.Compatible with all US mac, macbook, adapter, duckhead, apple, power adapters Charger. COMPLY WITH US STANDARD WALL OUTLETS: Compatible with all US plug mac products, iPhone, iPod or iBook power adapters. Perfectly replace UK or EU plug, do a great job in your travelling.Compatible with all US mac, macbook, adapter, duckhead, apple, power adapters Charger. SECURITY GUARANTEE: The wall adapters adopt fireproof and heat resistant material, have gone through very stringent safety standards, for users' safety is top priority.Compatible with all US mac, macbook, adapter, duckhead, apple, power adapters Charger. CONSIDERATE DESIGN: The adapter plug features foldable design, you can fold it and put it in your bag, taking it anywhere. It's small, just take little space, what's more, it won't damag