50 Pcs Spacers for 3mL Injection Pen Cartridge for 3mL Peptide Pen

50 Pcs Spacers for 3mL Injection Pen Cartridge for 3mL Peptide Pen

• No Residue & Full Utilization: Designed for 3ml standard cartridge containers. The auxiliary pushing structure effectively reduces internal liquid residue, makes full use of contents and avoids unnecessary waste.
• Wide Compatibility & Easy Installation: Customized for regular 3ml cylindrical cartridges with precise size fitting. Universally compatible with most 3ml standard cartridges, simple to install and highly practical.
• Extended Stroke & Effortless Use: Extended push stroke design helps the plunger reach the limit position, optimizing the overall operating stroke for smoother, labor-saving daily use.
• Premium Reusable Material: Made of high-strength durable PLA material with great toughness and deformation resistance. Lightweight, portable, reusable for long-term use and easy to store.
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