Hello! Welcome to our store! There is 2-3% difference according to manual measurement. please check the measurement chart carefully before you buy the item. 1 inch = 2.54 cm Please Due to differences in shooting equipment, displays, and production batches, the product may have slight color differences. This is normal, please refer to the actual product. We have tried our best to restore the true color through professional equipment, but we still recommend that you watch it under natural light for the most accurate visual effect. Before shipping the product, we will select durable materials and conduct strict quality control to ensure that the product remains intact after long-distance transportation. The product is packed with shockproof and moisture-proof materials and built-in cushioning materials