ZOETIS QUICKSHOT VACCINATORQUICKSHOT VACCINATOR 1ml Fixed Dose Vaccinator with 2 x 18g x 1 4" needles 5 ml Variable Dose Vaccinator with 2 x 16g x 1 2" needles For the use in the application of animal health vaccines. Ensure that your needles are clean and sharp before use change your needles every 50 doses or if the needle becomes damaged, burred or bent. Sterilise before each use and clean and maintain your vaccinator according to manufacturer directions.