1 RANDOM COLOR - This fidget is a mesh tube that contains a marble to roll around. Ends are sealed to securely hold marble inside. Length varies from 4.25" - 5" long. Fidgety fingers slide the marble back and forth in this tight tube of fabric to soothe anxiety and stress in the classroom, theater, airplane, office or anywhere one needs to keep quiet hands. Fidgeting stimulates neural responses to produce an increase in blood circulation in the brain and extremities, so it can ease the symptoms of generalized anxiety disorder, ADD, ADHD, obsessive-compulsive disorder, dementia and autism.