Hinged Laser Target For Walls - Disto & Other Laser Measurers

I loved ccbdav's idea for a wall target for putting on the edges of walls. I do flooring estimation, and often have to do very long laser shots. When I need to stop at a certain wall to make a corner I usually would have to do deductions with the Disto tool, and shoot to another wall.

I liked ccbdav's idea, but wanted mine hinged so I could rotate 90 degrees depening on which edge of the wall I would connecto to.

The magnet holes are for 12mm diameter 3mm thick magnets I got from Home Dep