Soft be aware : These locks are only installed on the bottom of rolling gates !Kindly notice :1.Transition: 1 cm = 10 mm = 0.39 inches2.Depending at the gentle and the screen, the color of the item could also be barely assorted from the color of the picture.3. Allow 0.5-2cm difference due to guide measurement5 if deserve to order for giant order ,PLS touch us unfastened .