Usage Tips:Features: 1.Practical Tool: This key hole companion tool eliminates the need for "ink" marking of mounting locations. It helps you quickly mark the location of the holes to be suspended. 2.Wide Application: Hole slots fit most hole lock slot styles and materials, perfect for hanging pictures, frames, mirrors, clocks and more. 3.Easy to Use: There is no need for laborious measuring with the key hole companion tool; no need to worry about leveling, it is suitable for plaster wall, wood panels or uneven surfaces. 4.Leave No Trace: Place the tool in contact with the surface, leaving no unwanted marks. Practical and convenient. 5.Full Kit: Package includes positioner x 2, accessories x 3, English instruction manual x 1. The size is small and compact, easy to operate and install. specification:Item Type: Key Hole Companion Tool Material: Plastic Positioner Size: Approx. 7x5cm / 2.8x2.0in Accessory 1 Size: Approx. 13.5x3.5cm / 5.3x1.4in Accessory 2 Size: Approx. 4x2.8cm / 1.6x1.1in : 1 Set Use: Household Scope of Application: Most of the Scene PackageList:2 x Positioner 3 x Accessories 1 x English Manual NoteManual measurement please allow some error.