Qty: 1 Pack (4 of each Practi-Insulin type =40 Vials)Practi-Insulin Starter Pack™ for clinical training. A Wallcur Exclusive! Teach insulin injection techniques, mixing and combining of short and long acting insulin, and dosage calculation skills with this comprehensive teaching aid. Wallcur’s Practi-Insulin Starter Pack™ contains each of our Practi-Insulin™ vials.