Chuckit! Breathe Right Ball Medium for Dogs - Durable Fetch ToyRun Farther, Fetch Longer With The Chuckit! Breathe Right Fetch Ball! This High Performance, Patent Pending Ball Is Designed To Facilitate Breathing And Airflow Into The Dogs Lungs While Running And Fetching. The Breathe Right Fetch Ball Is Compatible With All Chuckit! Launchers And Is Available In Small (2 Pack), Medium, And Large For Dogs Of All Sizes! The Chuckit! Breathe Right Ball Medium is designed to provide endless entertainment and exercise