Highlights: Now you can switch between SIM cards & handle all your calls on the same phone Ideal for business iPhone 4 users Holds two SIM cards No cutting of SIM card Menu option for SIM switching Comes with back case Dual SIM card adapter Compatible with Apple iPhone 4 This dual SIM card adapter comes supplied with a back case cover allowing you to use your Apple iPhone 4 with two SIM cards via the interface ribbon cable Connect the micro-SIM card tray (SIM 1) to a standard SIM card adapter (SIM 2). It folds around the back of the iPhone 4 to a place where the case holds them in to position. The back case has a raised area to keep the second SIM card safe & secure & also protects your iPhone from getting scratches. Instruction manual is printed on package Compatible with Apple iPhone 4 16GB & 32GB models Specification: Dimensions: 11.7 x 6.2 x 1.1cm Weight: