Product Description 4E's Novelty Expandable Ball Key Features: Colors may vary Expands from 5.6" to 12" Great for breathing visual Stress Relief and calming toy for kids and adults Read more Great Tool for Mindful Breathing & Relaxation Teach your kids to relax with this fun expanding ball. Breathing Ball Technique: Hold in front of your belly Take deep breath in while contracting the ball Exhale slowly while expanding the sphere. Repeat the steps 1-3 until your fully relaxed and rejuvenated 30 Pcs Fidget Packs Sensory Toys Set 4 Expandable Breathing Ball Glow in the Dark Expandable Ball Stress Relief Pcs per unit 30 4 1 Kids Safety Test Approved