This twistable therapy device is an ergonomic approach to hand therapy, minor stress relief, smoking cessation, building fine motor skills, and much more. Soft, texturized rubber bumps on this Tangle provide a one-of-a-kind sensory and tactile experience in your hands. The motion is calming and fun! The ability to #fidgettofocus is amazing! Research has shown that fidgeting quietly during stressful times can lead soothed nerves and anxiety, more body control, focus, and improved rehabilitation. Educators everywhere use Tangles in their classrooms to aid reading and math comprehension and to keep restless minds and hands to keep focused. Not suitable for children under the age of 3 due to small parts.