Weight Loss Pen Injector Reusable Adjustable Dose 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 convenient, adjustable range 0~60 IU