16 Ounce Medium Tube and Stopper 7/16 Inch

Lixit 16oz Medium Replacement Tube and Stopper. 7/16 tube 

Medium nozzle size: the medium Tube measuring 7/16" Is designed for hook bill birds such as Conjures, African greys, Quakers, Senegal's, rabbits, ferrets, guinea pigs, chinchillas, and small dogs