# Ring binder Donau Master lever A4 50 mm red, model 3950001PL-04

**URL:** https://aio.lv/en/product--donau-3950001pl-04--11443188
**Data updated:** 2026-03-07 20:12 (EET)
**Category:** Document Folders
**Manufacturer:** Donau
**Manufacturer code:** 3950001PL-04
**EAN:** 5901498011583
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 5.99 €
**Prices and availability valid until:** 2026-07-23 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-04--11443188

## 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 lever-operated A4 ring binder with 50 mm spine capacity in red (model 3950001PL-04). Designed for filing and organizing punched A4 papers, the lever mechanism enables easy opening and secure closing of rings for adding or removing documents. Suitable for office, school or home use where durable, high-capacity document storage is required.

## Long description

Donau Master lever A4 ring binder with a 50 mm spine in red is designed for filing and organising punched A4 paper. The lever-operated mechanism allows controlled opening and reliable closing of the rings, enabling quick insertion or removal of documents while keeping papers aligned. The binder’s high-capacity spine accommodates thick document sets and is finished in a red outer cover suitable for colour-coded filing systems in office, school or home environments.
Advantages
The lever mechanism provides smooth, low-effort operation for frequent use and reduces the risk of misaligned rings. The 50 mm spine offers substantial storage capacity for project folders, reports and manuals without compromising ring stability. The durable cover material resists everyday wear and supports long-term document storage. The red colour helps with visual identification in multi-binder collections.
Suitable for
Archiving and organising large sets of punched A4 documents
Office projects, reports and procedure manuals
School coursework, lesson plans and student records
Home administration, warranties and personal records
Key specifications
Format: A4 for standard punched paper
Spine capacity: 50 mm for high-capacity filing
Closure type: lever-operated ring mechanism for secure locking
Colour: red for easy visual sorting
Material features: durable cover suitable for frequent handling
How to use
Open the rings by operating the lever to expose the ring openings, align your punched A4 sheets on the rings and then close the mechanism until the rings engage securely. Arrange documents on rings in the order you need and ensure pages are properly punched to prevent tearing. Store the binder upright on a shelf or lay flat for transport, keeping the cover closed to protect contents from dust.
Usage recommendations
For optimal longevity, avoid overfilling beyond the 50 mm spine capacity and distribute heavy inserts evenly. Use reinforced punched pockets or dividers for frequently referenced documents to minimise wear on hole punches and paper edges.

## FAQ

### How much does the Donau Master A4 lever 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 — 75 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/11443188/66081459_large.webp