Art balls are a good fidget toy to keep hands busy by creating a calming sensory experience. Provides added comfort for fidgety kids, those with autism, or even teens/adults with anxiety or ADD. Made of wood, 1.25 in in diameter, and painted with non-toxic water-based paint. Smooth feel. Balls can be scrunched, twisted, and turned into endless shapes. Not for children under the age of 3 years. In original box...never used.