# Document Binder Donau Master A4 green 50 mm spine

**URL:** https://aio.lv/en/product--donau-3950001pl-06--1071453
**Data updated:** 2026-03-07 10:58 (EET)
**Category:** Document Folders
**Manufacturer:** Donau
**Manufacturer code:** 3950001PL-06
**EAN:** 5901498011644
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 4.95 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--donau-3950001pl-06--1071453

## 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 A4 document binder in green with a 50 mm spine for filing and organizing A4 papers. Mechanical ring/archive binder designed to hold punched sheets securely, suitable for office, school or home use. Durable cover and wide spine provide higher capacity for documents, invoices, reports and project files.

## Long description

Donau Master A4 green 50 mm spine is a mechanical ring binder designed to store and organize punched A4 papers. The binder features a durable cover and a 50 mm spine that provides increased capacity for documents, invoices, reports and project files. Its simple mechanism secures sheets reliably for everyday office, school or home filing needs while the green cover helps with colour-coded organisation.
Advantages
The binder combines a robust cover material with a metal ring mechanism for reliable long-term use. A 50 mm spine increases paper capacity compared with slim binders, enabling you to keep larger volumes of documents together. The standard A4 format ensures compatibility with common punched paper sizes and accessories such as index dividers and plastic sleeves.
Suitable for
 Office filing of reports, invoices and contracts
 School and university notebooks, assignments and course materials
 Home organisation of manuals, receipts and warranties
 Project documentation and archiving of larger file collections
Key specifications
 Format: A4 (for punched A4 sheets)
 Spine width: 50 mm for medium to high document capacity
 Cover colour: green for visual organisation
 Closure type: mechanical ring/archive binder mechanism
 Intended use: filing, archiving and organising loose-leaf documents
How to use
Open the ring mechanism and insert punched A4 sheets, index dividers or plastic sleeves. Close the rings until they click to ensure sheets are held securely. Place the binder upright on a shelf using the spine, or store flat if preferred. To add or remove documents, open the rings, make the changes, and close the mechanism again. Regularly check that rings align correctly to prevent tearing of paper.
Usage recommendations
For longer preservation, avoid overfilling beyond the recommended capacity of the 50 mm spine, use reinforcements for frequently handled punched holes, and combine with dividers or sleeves to protect important documents.

## FAQ

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

The price is 5.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 42 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/1071453/68515917_large.webp