1. , practical,ideal and cost effective 2. Euro cylinder size Gage,spindle holders/tool. 3. Save the room of your tool box because this tool has multiple functions. 4. Depth measurement gauge to allow the correct size of cylinder to be specified. 5. Meter keys to allow quick access to meter cupboards. Tapered square spindle that allows spindle sizes up to 10mm to be turned. Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Metal Package Contents: 2 * Lock Body Adjustment Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.