A Wacky Track is a type of fidget toy made up of small, interlocking segments that can be twisted and snapped into different shapes. It's often used for stress relief, improving focus, or as a fun way to keep hands busy. The segments make a clicking noise as they're manipulated, adding a sensory experience to the tactile one. Wacky Tracks come in various colors and are popular among both kids and adults for their simplicity and versatility.