★ The keyhole is vertically oriented and has a mortar shape, making it easy to use, and it's also highly secure due to the dimple key specification. ★ MIWA Lock JN・HPL Cylinder ST finish, with 3 child keys Compatible with door thicknesses of 33-36mm ★ Cylinder Dimensions From the keyhole (27mm diameter) to the end of the stainless steel tube: 49mm From the keyhole (27mm diameter) to the end of the CY tube (26mm diameter): 87mm From the keyhole (27mm diameter) to the top and bottom tabs of the CY tube (26mm diameter): 90mm (Please check the above dimensions from the left side of the cylinder in image No. 4) We kindly request that those who can make a decision based on the above information make a purchase.