Hanging three frames in a row shouldn't take a whole afternoon and a rubber. This level throws a bright red line along the wall, horizontal or vertical, so every nail lands on the same line. Two bubble vials confirm you're level, and the 2.5 m tape measure built into the body means one tool fewer to carry up the ladder. It rests flat against the wall or screws onto any tripod with a standard thread. Just as useful for shelves, curtain poles, tiles and wallpaper borders. Batteries are included.