The iabolo (commonly misspelled as diablo and mispronounced dia-BO-lo), formerly also known as "the devil on two sticks") is a juggling prop consisting of a spool which is whirled and tossed on a string tied to two sticks held one in each hand. A huge variety of tricks are possible using the sticks, string, and various body parts. Multiple diabolos can be spun on a single string.