Q-Ject Ultra 0.5mL insulin syringe features a 31G x 1/4" ultra-fine needle designed for maximum comfort during insulin injection. This single-use syringe has clear markings for accurate dosing and comes with an orange safety cap. The syringe has a 0.5mL capacity with precise unit markings for accurate insulin measurement. The ultra-thin 31 gauge needle with 1/4 inch length helps minimize injection discomfort. For single use only. Sterile and latex-free. Store in a cool, dry place.