1、[No Measuring Needed]‑Install objects quickly and easily with keyhole slots, accurately locate fastener locations for keyhole slots without measuring or generating templates. 2、[For Most Types Of Keyhole Slots]‑Works with all keyhole slot materials and most keyhole slot configurations, including molded (plastic), cut in (wood, plastic, or metal), and additional hardware (surface mount or recessed). 3、[Marking Almost Any Surface]‑Comes with long lasting black and white ink on both light and dark surfaces. Suitable for hard, soft, glossy and rough or textured surfaces. Ink can be removed with denatured alcohol. 4、[Self Ink Marking]‑When the keyhole slot marking tool is installed on the object, the ink is automatically transferred from the ink container in the lid to the marking pad. Quickly and easily. 5、[Wide Use]‑Keyhole companion tool is suitable for most scenarios, such as shelves, shadowboxes, electronics, power strips, artwork, photo frames, telephone parts or appliance bases, clock and weather stations. Item Type: Keyhole Slot Marking Tool Material: Plastic Single Marking Tool Size: Approx. 7x4.5x3cm / 2.8x1.8x1.2in Weight: Approx. 111g / 3.9oz 2 x Keyhole Marker Tool with Black Cover 1 x Storage Rack with 2 White Ink Cover 1 x Low Viscosity Adhesive Strip 1 x Mini Bubble Level 1 x English Manual