Q: How about quality assurance & after-sales service? A: We are committed to providing customers with high-quality products and excellent services. If you have any questions about product specifications and usage methods, you can contact us; if you have not received the package, the products damaged due to the logistics, or you are not satisfied with the product itself, please contact us, we will give you satisfied reply and solution within 24 hours. Looking forward to your purchase and experience of our product Specification: Condition: 100% Brand New Material: Tempered Glass Optional Color: White, Black, Pink Weighing Range: 0.2-180kg Size: Approx. 25 x 26cm/9.8 x 10.2in Package List: 1 * Host 1 * USB Cable 1 * Instruction Book Note: 1. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 2. This product belongs to the household scale category, plus or minus 0.3kg is normal tolerance. 3. Please wait more than 10 seconds for the first use, otherwise there will be weight error. 4. Please use it on hard and flat floor tiles. There will be a big error if you put anything on the bottom of the scale or use it on soft carpet, foam or other uneven wood floor or cement floor.