Product 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 Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!