A playground apparatus comprising at least three separate elongated plank
extending in a generally horizontally spaced end-to-end relationship, at
least one pivotal support member for pivotally supporting each of the
elongated plank in vertically spaced relationship above a support surface
for vertical pivotal movement of opposite ends of the elongated planks,
and at least two resiliently flexible living hinges each providing a
void-free connection between adjacent ends of the elongated planks to
eliminate a pinch point while providing for simultaneous vertical
movement of said elongated planks.