You can easily update the numbers by turning the parts halfway with just one finger. 3D numbers are also great for visibility from the left and right side, as well as on the front. No power supply required, no matter where you install it. For updating work, there is no need to remove and remove the number tags and parts, so there is no need to worry about losing it. ● "Fully Original Plank" and "Add of company or department signature" will be assumed separately.