# Ring Binder Donau Master 2-ring A4 50 mm blue

**URL:** https://aio.lv/en/product--donau-3947001pl-17--11933701
**Data updated:** 2026-03-10 11:22 (EET)
**Category:** Document Folders
**Manufacturer:** Donau
**Manufacturer code:** 3947001PL-17
**EAN:** 5901498034308
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 5.36 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-3947001pl-17--11933701

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Donau Master 2-ring A4 binder in blue with a 50 mm spine capacity. Designed to hold punched A4 documents, this binder provides organized storage for office, school or home use. Features two rings for secure fastening of papers, a durable cover and a spine wide enough to accommodate a substantial number of sheets for filing and archiving.

## Long description

The Donau Master 2-ring A4 binder in blue is a functional file storage solution designed for punched A4 documents. With a 50 mm spine, the binder provides space for a substantial number of sheets while maintaining a slim profile for shelf storage and transport. The durable cover protects contents from wear and light damage, and the two-ring mechanism ensures papers stay securely fastened and aligned.
Advantages
This binder combines a sturdy cover with a reliable two-ring fastening system that keeps documents flat and orderly. The 50 mm spine offers a balance between capacity and compactness, making it suitable for regular filing and archiving. The simple design and neutral blue colour support easy identification and integration into office or study environments.
Suitable for
 Storing and organizing punched A4 documents
 Office filing and record keeping
 School notebooks and course materials
 Home paperwork and manuals
 Short-term archiving and project files
Key specifications
 Format: A4, compatible with standard A4 punched sheets
 Ring type: 2 rings for secure paper fastening
 Spine width: 50 mm capacity
 Cover: durable protective cover in blue
 Orientation: vertical spine for shelf filing
How to use
Open the two-ring mechanism and insert punched A4 sheets onto the rings, then close the rings until they click or align fully to prevent pages from slipping. Arrange documents in logical order before insertion for easier retrieval. Place the binder upright on a shelf or lay flat for transport. For heavy contents, close the rings carefully to avoid bending sheets and periodically check ring alignment to maintain smooth operation.
Usage recommendations
For optimal longevity, avoid overfilling beyond the 50 mm capacity. Use divider tabs or labelled inserts to separate sections and improve document retrieval. Store the binder away from direct sunlight and excessive humidity to preserve the cover and paper quality.

## FAQ

### How much does the Donau Master 2-ring A4 binder 50 mm cost, and is it available for purchase?

The price is 6.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 39 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 14.07.2026 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/11933701/67365995_large.webp