Practical design: The built-in sensor system of the mini portable scale provides instant and accurate results; the maximum weight capacity is 200 grams with a weighing accuracy of 0.01 grams; features an LCD display and tare function for easy operation. Easy-to-read electronic scale for a wide range of uses: The mini portable electronic scale can weigh various small and light items such as food, gemstones, coins, jewelry, and gold; includes four measurement units—g, oz, dwt, and ct—for convenient weight conversion and quick switching between units. Constructed with high-quality metal and plastic housing for durability and portability; compact dimensions of approximately 2.5 x 1.3 x 0.6 inches (64 x 34 x 15 mm), lightweight and easy to carry. Note: This product does not include batteries. Ideal gift choice: The portable electronic scale is compact, sleek, and user-friendly, making it a thoughtful gift for family, friends, or colleagues. Package includes: 4 mini digital scales designed in a car key shape, stylish and simple; equipped with advanced sensor technology for fast and accurate readings; easily attaches to a keychain for convenient transport. Product package quantity: 4 Features: - Designed in a car key shape for portability and convenience; can be hung on a keychain. - LCD display with blue backlight for clear visibility in low light. - Elegant design, practical function, and broad application. Usage precautions: 1. Measurement error range is within 0.005g. 2. Use the scale in a wind-free and stable environment. 3. Calibrate and tare the scale before each use. 4. Keep away from speakers and other magnetic sources.