Pocket knife Opinel Colorama 04 Black keychain — Opinel folding knife model 04 with keyring

The Opinel Colorama 04 Black keychain is a compact folding pocket knife designed by Opinel for lightweight everyday tasks. With the small No. 04 blade and an integrated keyring, this model combines the simplicity of a classic Opinel blade with the convenience of a keychain attachment. Its folding design keeps the blade protected when not in use and the small size makes it easy to carry on keys, in a pocket, or attached to a bag.

Advantages

The knife offers a blend of portability and practical utility: a sharp stainless steel blade in a compact form factor, a secure fold for safe storage, and a built-in keyring for immediate accessibility. The straightforward design requires minimal maintenance and the lightweight handle provides comfortable one-handed use for short tasks. The Colorama finish gives a clean, modern look while retaining the functional reliability of an Opinel blade.

Suitable for

• Opening letters and packages
• Cutting twine, tape or small cords
• Small food prep tasks while traveling (peeling fruit, slicing soft items)
• Everyday carry on keyrings, backpacks, or pockets

Key specifications

• Blade size: small, No. 04 blade
• Blade material: stainless steel
• Handle: compact, lightweight handle with Colorama finish
• Locking: folding design for blade protection when closed
• Carry: integrated keyring for attachment to keys or bags

How to use

Open the knife by rotating the blade out from the handle until it is fully extended and seated. Use the blade for light cutting tasks, applying steady, controlled pressure and keeping fingers clear of the cutting edge. Fold the blade back into the handle after use to protect the edge and prevent accidental contact. When attached to a keyring, ensure the knife is fully closed before carrying to avoid wear or unintended opening.

Usage recommendations

Keep the blade clean and dry to prevent corrosion and periodically sharpen with an appropriate hone to maintain cutting performance. Avoid using the knife for heavy prying or cutting hard materials to prevent damage to the small blade. Store folded when not in use and check the keyring attachment regularly for secure fastening.