Examples disclosed herein provide a hinge for a foldable display unit. One example hinge includes a plurality of brackets. A bracket from the plurality of brackets is to operably couple to an adjacent bracket from the plurality of brackets, to be folded into an arcuate shape. The hinge further includes a plurality of links to operably couple the plurality of brackets to each other. A first end of a first link from the plurality of links is rotatably connected to an end of a second link from the plurality of links according to a first frictional value. A second end of the first link is rotatably connected to an end of a third link from the plurality of links according to a second frictional value less than the first frictional value.