Multi-Sim Card Holder For iDevices.

If you have multiple phone numbers, or simply travel abroad often and use different SIM, USBFever offers a set of SIM slots compatible with iPhone and iPhone 3G/3GS 4.

The kit includes 3 Mini SIM holder, 3 Micro SIM holder, a paper clip to pull the iPhone slots and a slot for credit cards.

It is, therefore, a small port-sim convenient for those who use multiple cards

Available here .