Drywall board lifter. Lifts up to 3.2m. Support arms are adjustable and lockable in all directions. Easy to break to pieces for storaging.
Below is link to usage video, since lot's of people have asked this:
https://www.youtube.com/watch?v=brFCC7bVKGY
Popularity of this video has really surprised me =)
Kipsilevynostin
