Moving while sitting is possible and beneficial! The sturdy rubber rebound band (latex and phthalate free) helps with concentration, reduces anxiety or allows for a more comfortable position. The Bouncyband bounce band is quiet and won't distract others. Active students are more productive and spend more time on task when they can move. Students with short legs will appreciate being able to rest their feet on the Bouncyband. Also, students who feel anxious in class will love being able to stretch their legs to release their anxiety. Features : -Easily installs to any chair -Stays in place when moving the chair -Sizes: 10" to 24"