Ruiunchu 60 Unit Reusable Peptide Pen Insulin with Travel Case (Black) Hard-shell Case, Adjustable Dose Dial, Clear Scale, Compatible Standard 3ml Cartridges

【High Capacity Design】This reusable peptide pen is designed with a 60-unit capacity, making it convenient for frequent use. It comes with a protective case, ensuring easy storage and portability. 【Precision Control】This refillable peptide pen has a smoothly rotating adjustment knob paired with distinct readable markings, enabling users to adjust values across the full 0‑60 unit range. 【Universal Compatibility】This peptide pen fits most standard 3ml cartridges, supporting simple and firm cartridge installation to maintain steady working states throughout your daily operating processes. 【Durable Construction】Built with solid metal parts, this reusable peptide pen stays lightweight with a sleek look, brings a refined hand feel and holds up well through repeated cycles of everyday handling. 【Sealing System Integrity】This peptide pen uses a dedicated sealing structure to limit contact between inner liquid and surrounding air, cutting down outside interference and adding extra safeguards for internal contents.