Each box contains six sterile needle-free syringes to deliver up to 126 insulin injections using the Medi-Jector VISION® Needle-Free Injection System.

Each Medi-Jector VISION® Needle-Free Syringe can be used for up to 21 doses of insulin or 14 days before it must be replaced. The syringes are available in three different sizes (A, B, and C). The difference among them is the size of the opening or "orifice" in the tip of the Needle-Free Syringe, and the size you will use is determined by your skin type. You will start with size "A" and receive some very simple instructions on how to determine if you should move to a different size. People with softer or thinner skin typically can inject with a smaller orifice size whereas those with thicker or tougher skin will often need a slightly larger orifice to inject with the Medi-Jector VISION.