Hello! welcome to our store! Quality first, providing the best service. The customer is our friend. Stylish design, 100% brand new, high quality! There is a 2-3% difference based on manual measurements. Please check the instrument carefully before purchasing. 1 inch = 2.54 cm Please note that due to light and screen, the actual color of the item may differ slightly from the color displayed on the image and should accept a slight color difference.