Wholesale High Quality Medical 3ml Multifunctional Reuseable Pen Injector Insulin Injection Pen Spring driven delivery for an effortless and comfortable injection process Intuitive and proven twist motion dose dialling and push-button activation for maximum patient acceptance Bayonet connection and sliding for quick cartridge change For insulin, Liraglutide, Teriparatide, other multi-dose therapies High quality look & feel Product Features Repeated use Dose adjustment is