3ml Metal Reusable Insulin Pen Injector with Pen Box

3ml Metal Reusable Insulin Pen Injector with Pen Box. 3-Year Lifetime Guarantee: Mature design ensures a guaranteed pen lifetime of 3 years with minimized complaint rates. Customizable Colors and Shapes: Pen cap and housing available in different colors; four distinct shapes for market differentiation. User-Friendly Dosing Mechanism: Optimized for force reduction with audible/tactile feedback and large dose display window. Quick Cartridge Replacement: Features thread/bayonet connection and sliding lead screw for fast cartridge changes. Full Customization Services: Supports OEM/ODM, custom logos, and flexible customization from samples or designs. Rapid Off-the-Shelf Availability: Ready-to-ship devices available within a few weeks for affordable upfront investment. 100% Finished Product Inspection: All units undergo functional and visual inspection by 18 dedicated QA/QC inspectors.