Atom Ball Tentacoolz Toy Tentacle Tactile Sensory Stress Fidget Autism ADHD 4", Great sensory / fidget toy! Ages 5+ Tactile- velvety- not sticky. The Atom Ball is a great tactile sensory tool for someone with dementia or Alzheimer's Disease. The atom ball can be used as a therapy device relieves stress, rehabilitates hand muscles & joints