New. Missing box. By Bouncyband. This helps children relieve anxiety, hyperactivity, frustration, or boredom and helps them to focus. It is also supposed to help children with ADD, ADHD, autism, and with sensory needs. It allows the students to have extra movement without creating extra noise or disruption. Simply slide the 2 front legs of the desk into the plastic pipes. The pipes keep the band from slipping down. Pipes are 8” long and 1.5” in diameter. The band is 20” long and stretches up to 26” wide.