UltiGuard U-100 1/2 cc, 31 ga. 5/16" Insulin Syringe Dispenser is an all-in-one sharps container and insulin syringe dispenser for use at home. The UltiGuard Dispenser is tamper-proof, easy-to-use, and comes with syringes already loaded inside it. Please note we are unable to accept returns of syringes or needles.