What is "devil sticks"

n. A juggling prop consisting of two hand sticks (dowels) and a third larger, hour-glass shaped stick.

The manipulation of the devil stick (also devil-sticks, devilsticks, flower sticks, gravity sticks, or juggling sticks) is a form of gyroscopic juggling or equilibristics, consisting of manipulating one stick (" baton") between one or two other sticks held one in each hand. The baton is lifted, struck, or stroked by the two control sticks ('handsticks' or 'sidesticks'), stabilising the baton through gyroscopic motion.

Devil sticks are believed to have originated in China in the distant past, in the form of simple wooden juggling sticks. They are one of the circus arts, and is sometimes called devil-sticking, twirling, sticking, or stick juggling.