21Inch Fold Umbrella
8 Ribs with All-Iron Frame Umbrella
- Name：Fold Umbrella
- Size：Diameter under the canopy: 97 cm
- How to open：Manual
- Fabric：Pongee
- RIB：Iron
- Handle：Plastic
- printing on demand
TEL：Mr. Liang +86.19240188468
Email：GreenSoure@foxmail.com
| Manufacturers | Green Source Umbrella Factory | Product name | Folding Umbrella |
| Styles |
Folding Umbrella |
RIB Material | Iron |
| Shaft Material | Iron | RIB | 8k |
| Fabric | Pongee | Size | 21 inch |
| Umbrella fabric density | 210t or 190t | Handle | plastic |
| How to open | Manual | Weight | 400g |
|
Printing /logo |
As required heat transfer printing/screen printing | Moq | 200 |
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21Inch Fold Umbrella 8 Ribs with All Iron Frame Umbrella |
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The 21 inch fold umbrella represents the standard, mainstream size for adult-use tri-fold and straight-shaft umbrellas. It features ribs measuring 21 inches (53.5 cm) in length, with an under-canopy diameter of approximately 95 cm, making it ideally suited for single-person use. The following provides a comprehensive list of specifications and common configurations:
I. Core Dimensions (Industry Standard)
Rib Length: 21 inches (53.5 cm)
Under-Canopy Diameter: Approx. 95 cm (37.4 inches)
Open Canopy Diameter: Approx. 97–100 cm
Folded Length (Tri-fold): Approx. 28–30 cm
Folded Length (Straight-shaft): Approx. 65–70 cm
II. Weight (Typical)
Tri-fold Automatic Umbrella: Approx. 350–400 g
Straight-shaft Umbrella: Approx. 450–600 g
**Description of All Iron Frame Umbrellas**
The all iron frame Umbrella represents the most economical option among umbrella configurations; it is primarily utilized for promotional giveaways and corporate gifting, and is rarely found in high-end umbrellas sold in the retail market. Its ribs, central shaft, and tips are all constructed from iron or steel. Its greatest advantages lie in its low cost and simple manufacturing process, making it particularly well-suited for large-scale custom printing of corporate logos. It serves admirably as a giveaway item for trade shows, a promotional tool for marketing campaigns, or an affordable custom umbrella option, effectively meeting basic rain-protection needs.
However, its drawbacks are also quite apparent: the umbrella is relatively heavy, its opening and closing mechanism offers only an average tactile feel, and it lacks resilience. In windy conditions, it is prone to deformation and bending, exhibiting relatively weak wind resistance. Furthermore, with prolonged use, the iron components are susceptible to rusting, resulting in limited durability. It does not fall into the category of mid-to-high-end products—such as windproof or executive-style umbrellas—but rather represents a purely entry-level, budget-friendly configuration. Its core appeal lies in its controllable costs and capacity for mass customization, making it the ideal choice for meeting the specific requirements of advertising promotions and corporate gifting.
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