H4D is a professional-grade office supply brand known for integrating hardware with organizational systems. Their products are preferred by medical and academic professionals for durability and color-coded workflow management.
- Material Science:
- Reinforced Polypropylene (PP5) case; Dividers are made of flexible, non-glare plastic; BPA Free.
- Temperature & Resistance:
- Freezer safe (down to -20°C) for laboratory sample indexing; not for oven/microwave use.
- Maintenance Protocol:
- Dishwasher safe (top-rack) for the case only; dividers should be hand-washed to avoid warping.
- Stacking & Modularity:
- Interlocking base and lid grooves enable secure "no-slide" vertical stacking for desktop towers.
| Model Name | Best Use Case | Capacity/Dimensions |
|---|---|---|
| H4D Index Card Holder 3x5 Inches with 25 Plastic Dividers, Black | Medical & Office Indexing | 3x5 / 25 Dividers |
| H4D 3x5 Index Card Holder with 100 Heavyweight Ruled Index Cards and 25 Plastic Dividers, Teal | Academic Study & Flashcards | 3x5 / 100 Cards + 25 Dividers |
