Human Biphasic Insulin Mixture Of 30 Percent Human Neutral Insulin And 70 Percent Human Isophane Insulin (Nph) 100Iu/Ml. 3Ml. Cartridge For Reusable Insulin Delivery Device (Pen) *Reusable Insulin Delivery Device(Pen) To Be Supplied Free Of Cost One Pen With Every 25 Cartridge.