Automatic Syringe Bottle Tube 5UM BT T 3 bowl Zinc may be added to Zinc may be added to some animal food sources but this does not necessarily mean that it is available (absorbed) and utilized ALSO AVAILABE (SOLD SEPARETLY) : THE K9HSCE is an optional accessory which enables the guard to be used on cars with limited space accessibility to the headrest stems Features: 5ml Automatic Self Filling Syringe Adaptable as a tube feed syringe or bottle top syringe Steel Plunger (no O ring) with precision glass barrel Adjustable Pin Lock handle design for easy conversion Heavy Duty Bottle Cage for Bottle protection (50ml & 100ml bottles only)