iPhone 4S / iPhone 4 CDMA (ONLY) Custom Back Cover Housing Replacement - Battery Door (NOT FOR GSM iPhone 4) (Next Generation Concept - Gunmetal on White) Fits ALL iPhone 4S and iPhone 4 CDMA ONLY (Verizon, Sprint) Custom Back Cover Housing Replacement Replacement Battery Door Cover for ALL iPhone 4S, and iPhone 4 CDMA ONLY (Verizon, Sprint) ***Does NOT fit the GSM iPhone 4 (AT&T or T-Mobile)