Color code your injection system with interchangeable colored knobs. Dedicate a particular colored knob to a selected vaccine or antibiotic compound to insure proper administration and avoid mistakes. Available as a 3 ct pkg; 1 red, 1 blue, and 1 yellow. Use with the Allflex Repeater syringes. Upgrade your vaccination process with the ALLFLEX Colored Piston Rod Knobs designed for seamless compatibility with Allflex Repeater Syringes. These piston rod knobs are specially crafted to enhance your syringe handling experience during the vaccination process. The vibrant and distinct colors not only add a touch of personalization but also facilitate easy identification, preventing cross-contamination between different vaccines or animals. Engineered with precision, these piston rod knobs ensure smooth and accurate dosage adjustments, allowing you to administer vaccinations with confidence. Elevate your livestock management and animal healthcare routines with these high-quality, durable piston rod knobs that fit comfortably in your hand, making the vaccination procedure efficient and stress-free.