Compatible Model: Only compatible with Apple Watch Series 7 (45 mm) with models A2474, A2477, A2478, please confirm your smartwatch model before purchasing. Brand New Li-Po Cell: Built with original, brand-new cells with 100% battery health, ensuring long-lasting performance. Include Screen Stickers: Comes with two screen adhesives—if one fails, you have a spare. Note: Remove any old adhesive from the frame before applying the new one. Comprehensive Toolkit: Comes with a complete set of professional repair tools. The battery is pre-installed with adhesive tape, making it easy to install. Step-by-Step Instruction: Provides a detailed repair guide that walks you through each step, so you can do the repair yourself without a high cost on a repair shop. GREEN FUSION New Upgraded Replacement Battery A2552 Compatible with Apple Watch Series 7 (45 mm), Includes Repair Toolkit & Instruction Manual