Tangle Jr. Classic Fidget Toy - Original by Tangle Jr. Brain tools to keep you focused by twisting, turning, and fidgeting Colors may vary Recommended by therapists and teachers for children with ADHD and AutismSet Due to separating segments, the Tangle Jr. is a choking hazard for children under the age of 3. Each Tangle Jr. is approx 7" long connected, link 1" long.