Features: Premium metal alloy construction delivers protective against scratches and daily impacts for your watch, featuring a precisely engineered case that maintains full access to watch controls. Designed with millimeter perfect alignment for smartwatch, this smartwatch accessory combines scratch resistant alloy with tool less installation mechanics for fast styles transformation. Ideal for outdoor adventurers requiring durability gear, professional seeking sleek technology accessories, and fashion forward users wanting customizable wearable option. Performs reliably during intense gym, formal business meetings, and outdoor activities like hiking or cycling while maintaining its polished metallic finish. The corrosions resistant coating technology ensures lasting shines across season, making this protective metal case a sustainable upgrade for smartwatch enthusiasts prioritizing both aesthetics and functionality. Specifications: Component: metal Size: Approx.5.6x4.8x1.4cm/2.2x1.88x0.55inch Color:1/2/3/4 Package Includes: 1pcs Protective Case note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.