for iphone 4 front +back cover, 1. fully compatible and replacement for iphone 4g gsm model. 2. back cover, inside frame for iphone 4 front +back cover, Specifications 1. fully replacement ... , need 5 days for 100% testing.8. Max Lot Shipment Capacity: 3,000pcs for each item. for iphone 4 full housing setfor iphone 4 covers, for iphone 4 front +back cover GSM ...