Waterproof Pre-Cut Screen Sticker: Specifically designed for Apple Watch Series 36/37/38/39/40/41/42/43/44/45mm, please carefully choose the correct one for your Apple Watch Complete Kit: Includes professional repair tools and a detailed instruction manual for easy installation Perfect Fit: Precisely designed to fit Apple Watch Series 36/37/38/39/40/41/42/43/44/45mm models for a seamless installation experience Top-of-the-line Materials: Our product utilizes premium materials and exclusive adhesive features to create a long-lasting protective solution, making it dustproof and waterproof Attention: In cold winter conditions, you may need to use a heat gun or hair dryer to heat the product for improved stickiness