Donau Elektronik krúžkový zakladač 4 krúžky modrý 3,5 cm DIN A4

The Donau Elektronik Ring Binder 4 Rings in blue is a robust and reliable document filing solution designed for DIN A4 paper format. With a spine width of 35 mm and a ring diameter of 25 mm, this binder offers ample capacity for approximately 250 sheets of 80 gsm paper. The hardcover polypropylene (PP) construction ensures water and tear resistance, making it ideal for archiving and everyday use. The smooth cover finish and integrated spine label holder provide a professional appearance and easy organization.

Advantages

This ring binder combines durability with functionality. The 4-ring O-ring mechanism allows smooth page turning and secure sheet retention. The water-resistant and tear-resistant PP material protects documents from damage, while the spine label holder enables clear labeling. The hardcover design offers extra protection for important files.

Suitable for

• Office document filing and archiving
• School and university note organization
• Home office record keeping
• Professional presentations and reports

Key specifications

• Paper Format: DIN A4
• Number of Rings: 4
• Ring Type: O-Ring
• Ring Diameter: 25 mm
• Spine Width: 35 mm
• Material: Polypropylene (PP)
• Color: Blue
• Sheet Capacity (80 gsm): Approx. 250 sheets
• Mechanism Type: Standard Ring Mechanism
• Label Holder: Yes, on spine
• Cover Finish: Smooth
• Cover Type: Hardcover
• Intended Use: Document Filing, Archiving
• Durability Features: Water-resistant, Tear-resistant
• Environmental Features: Recyclable

Recommendations

For optimal organization, pair this binder with Donau Elektronik dividers and sheet protectors. The 35 mm spine is ideal for moderate document volumes, and the blue color helps with color-coded filing systems.