Attach the sprayer to a garden hose and secure tightly

Do not give more than one chew per day

Contains imidacloprid with no known fly resistance

Each bone measures approximately 12–14" in length and is proudly made in the USA

Comes with a childproof cap

Rx Sustain III Bolus (sulfamethazine) Sustained Release Bolus (72 Hours) for Calves Vaccine Attach the sprayer to aRx SUSTAIN III Antibacterial Calf Bolus (Sulfamethazine) Sustained Release (72 Hours) SUSTAIN III Boluses are formulated for oral administration in ruminating replacement calves (calves over 1 month old that are not on an all milk diet). These sustained release boluses are designed to provide effective antibacterial activity for up to 72 hours, targeting a broad spectrum of common cattle diseases. Ideal for receiving programs, they help beat