iPhone 4S Internal Li-ion Battery PREMIUM Kit with DM Tools, Cleaning Cloth, and Instructions Included Model: A1431, A1387 - DIYMOBILITY REPLACEMENT LITHIUM ION BATTERY FOR THE IPHONE 4S ONLY [GSM/CDMA] INCLUDES A FULL DM TOOL KIT, CLEANING CLOTH, DIYMOBILITY INSTRUCTIONS, AND 2 BOTTOM SCREWS 30 DAY WARRANTY PROVIDED BY SELLER BRAND NEW, HIGH QUALITY GUARANTEED. FREE SHIPPING! AT&T / T-MOBILE / VERIZON / SPRINT / INTERNATIONAL