Compact 4-Slot 3ml Peptide Vial Sleeve Holder with Removable Lid

Note, If you want more sizes, see my updated listing!

https://makeronline.com/en/model/Parametric%20Peptide%20Vial%20Holder%20v1.1/304490.html?trackModuleType=10

This is a slim, compact 4-slot sleeve designed to securely hold four standard 3ml peptide vials (typically 16mm diameter).

The snug fit keeps your vials upright and protected from tipping or rolling, while the separate removable lid provides extra containment and neat storage — perfect for the fridge, freezer, travel bag, or lab drawer. Printed on my Kobra X in a bit over an hour.

Key Features:

• Holds exactly 4 × 3ml vials
• Two-part design: base sleeve + fully removable lid (no hinges or hardware needed)
• Very space-efficient and low-profile — ideal for crowded refrigerators or small storage spaces
• Easy to print with minimal filament usage and no supports required on most printers
• Durable and reusable for daily peptide, research compound, or insulin vial organization

Printing Recommendations:

• Print sleeve and lid in the same color or contrasting colors (red shown in photos)
• 2 walls, 15% infill for a sturdy feel.

Best Uses:

• Peptide & research chemical storage
• Fridge organization
• Travel vial protection
• Insulin or medication vial management

If you like this design and want a version with more slots, different vial sizes, or custom labels, just leave a comment — happy to consider remixes!