Thumbsup UK, UK Thumbsup UK, Dual SIM Case for iPhone 5 - Retail Packaging - Black Use 2 SIMs in the same phone Just place the 2 SIM Cards inside the protective case and attach it to your phone simple travel solution eliminates the need to dismantle phone to change SIM cards Compatible with iPhone 5/ 5S (Please note: not compatible with iPhone 5C) Measures approximately 2.56 by .55 by 5.04-inches