# Ring Binder Donau 4-ring A4 50 mm black

**URL:** https://aio.lv/en/product--donau-2788504pl-01--11933561
**Data updated:** 2026-03-10 11:22 (EET)
**Category:** Document Folders
**Manufacturer:** Donau
**Manufacturer code:** 2788504PL-01
**EAN:** 5901503691816
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.49 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 7.84 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-2788504pl-01--11933561

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Donau 4-ring A4 binder with a 50 mm spine in black. Designed to hold punched A4 documents securely on four rings, it offers practical storage for office, school, and home use. Suitable for organizing reports, manuals and loose sheets; provides durable, compact filing and easy access to contents when used on shelves or in drawers.

## Long description

Donau 4-ring A4 binder with a 50 mm spine in black is designed to store punched A4 documents securely and compactly. The binder accepts four rings to keep loose sheets, reports and manuals organized, providing a practical filing solution for office, school and home environments. Its 50 mm spine offers increased capacity while maintaining a slim profile suitable for shelf storage and drawer placement.
Advantages
The binder's four-ring mechanism provides reliable document alignment and reduces page shifting. Its 50 mm spine increases capacity compared with narrow binders while remaining easy to handle and store. The durable cover material protects contents from dust and wear, and the black finish offers a neutral, professional appearance that blends into most filing systems.
Suitable for
 Organizing punched A4 documents, reports and manuals
 Archiving school materials, handouts and coursework
 Office filing for meeting notes, procedures and reference documents
 Home paperwork such as warranties, instructions and bills
Key specifications
 Format compatibility: A4 punched sheets
 Ring type: four-ring mechanism for secure holding
 Spine width: 50 mm capacity for multiple dozens of sheets depending on paper weight
 Cover colour: black
 Suitable storage: shelf and drawer friendly dimensions
How to use
Open the binder using the ring mechanism and insert punched A4 sheets onto the rings, ensuring holes align with the ring positions. Close the rings securely to keep pages in place. Use the binder on a shelf or in a drawer for easy access; add dividers or labeled separators if needed to organize sections. To remove or rearrange pages, open the rings, reposition sheets and close them again to maintain secure alignment.
Usage recommendations
For longer-term archiving, combine the binder with polypropylene sheet protectors to protect important documents from wear and moisture. Avoid overfilling beyond the 50 mm spine capacity to prevent strain on the ring mechanism and to ensure smooth opening and closing.

## FAQ

### How much does the Donau 4-ring A4 binder 50 mm cost, and is it available for purchase?

The price is 9.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1435 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 15.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Donau products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Donau service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11933561/67365858_large.webp