Product Overview
28MM wider Glass Tube Flat Bottom Clear Glass Test Tube With CR Cap for Pre Packaging is designed for buyers who want a more premium glass presentation than standard plastic tube formats while keeping a practical filling opening and a shelf-stable flat-bottom structure. The 28mm wider-mouth direction supports easier loading and stronger visual presence, while the child-resistant cap route makes the format suitable for modern compliant packaging discussions.

Different Product Angle
This format combines the clarity of a glass test-tube style body with a wider-mouth proportion that feels more substantial in hand. It works well for premium pre-roll presentation, infused product programs, small-batch specialty packaging and brands that want visible product display through clear glass.

Closure Structure & Flat Bottom Detail
The child-resistant cap direction improves retail-readiness, while the flat-bottom glass body helps the tube stand more securely during merchandising, packing and photography. For teams comparing jar-versus-tube formats, this wider glass tube offers a useful middle route: cleaner than many plastic tubes, but more streamlined than a full jar pack.

Key Features
- 28mm wider-mouth clear glass tube format for easier filling and stronger product visibility
- Flat-bottom body structure for improved standing stability and retail presentation
- Child-resistant cap route for compliant packaging programs
- Premium-feel glass presentation suited to higher-end branded projects
- OEM / ODM support for logo, decoration, labeling and custom packaging development
Close-Up View
Close-up product views help buyers review cap proportion, body clarity and overall finish quality before sampling. This is especially useful for packaging teams evaluating premium display programs, white-label projects and custom-decorated tube packaging.

Family Size Options
Biolife can discuss this wider glass tube together with nearby glass tube and jar formats when the buyer wants a broader product family, multiple size points or a consistent packaging lineup across different SKUs. That makes this page a practical reference point for both sampling and project quotation.

Specifications
- Product name: 28MM wider Glass Tube Flat Bottom Clear Glass Test Tube With CR Cap for Pre Packaging
- Model No.: GT-WM-120MM
- Material: Clear glass tube with child-resistant cap
- Structure: Flat-bottom clear glass test tube
- Opening direction: Wider 28mm mouth
- MOQ: 10,000 pcs
- Branding support: OEM label, custom color and custom decoration support
- Use direction: Premium pre-roll, concentrate, nutraceutical and specialty packaging projects
Customization Support
We support OEM and ODM development for logo printing, label application, surface decoration and project-specific packaging customization. For wholesale buyers building premium glass packaging lines, this 28mm wider flat-bottom tube is a strong option for a more refined and standardized presentation.
Applications
Suitable for pre-roll packaging, infused-product presentation, nutraceutical samples, concentrate accessories, premium flower packaging and other specialty retail programs that benefit from a clean clear-glass look with child-resistant closure logic.





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