Description: With keyhole slots, accurately mark fastener locations for keyhole slots without measuring or generating templates. Works with all keyhole materials and most keyhole configurations and features long-lasting black and white ink that marks both light and dark surfaces. Works on hard, soft, smooth and rough/textured surfaces. Use denatured alcohol to remove marks. When the tool is mounted on an object, the ink is automatically transferred from the ink reservoir in the cap to the marking pad. Lid holds ample dry-proof ink for reusable use. When placing objects, the recessed marker board keeps the surface clean until you are ready to mark the location. Features: Product size: 9*6*4cm/3.54*2.36*1.57in Storage shelf size: 136.6*35.5*15mm/5.38*1.4*0.59in Single product: 7*7*7cm/2.76*2.76*2.76in Packing List: 1 set*Screw Hole Locator Standard accessories include: 2*keyhole marking tool 2* black ink caps 2* white ink caps 1*mini bubble level 6*Low-tack adhesive strips 1*storage shelf 1 * Bracket for level and glue strip