If your pet has been diagnosed with diabetes, Sol-Vet U40 Insulin Syringes are ideal for use on Cats and Dogs. If you’re nervous about injecting for the first time these 0.3 and 0.5 syringes are really easy to use due to their ultra-sharp needle, which makes injections a more comfortable experience for you and your pet. Worried you might get the dosage wrong? The transparent barrel with clear markings ensures correct measurements.