U-100 UltiCare VetRx Insulin Syringes 100/box (½cc, 31g x 5/16") **Free Dispenser!! - J&B Pet Source
SOL-M Insulin U100 Syringe with HALF UNIT markings - bags of
Amazon.com: UltiCare VetRx U-40 Pet Insulin Syringes, Comfortable and Accurate Dosing of Insulin for Pets, Compatible with Any U-40 Strength Insulin, Size: 3/10cc, 29G x ½'', with Half Unit Markings, 100 ct
U-40 Syringes for ProZinc and Vetsulin Insulin - Pet VM