Extrema Ratio Carry Box Set: BFK EVO LE No. 289/500 Folding Knife, Cap, Wallet, Carbon Card (04.1000.0174/B-KIT)
- Extrema Ratio Carry Box, an exclusive edition limited to 500 copies, containing the BFK EVO LE No 289/500 folding knife, cap, wallet and carbon card. A combination of tactical functionality, Italian design and collector prestige.
223,75 €This product is intended for use only by adults with knowledge and experience in handling sharp cutting tools. Improper use of the knife can result in serious injuries. The blade is extremely sharp and can easily cut through skin and tissue; therefore, extra caution should always be exercised while cutting, and hands should be kept away from the cutting edge. To prevent the knife from slipping, it is recommended to cut on a stable, non-slip surface and avoid excessive force, which may cause uncontrolled blade movement.
Leaving the knife on the edge of a table, countertop, or in easily accessible places—especially where children are present—poses a significant safety risk. The knife should always be properly secured after use, ideally by placing it on a stable surface or storing it in designated knife blocks, protective sheaths, or magnetic strips. The knife should never be used for tasks it is not designed for, such as opening cans or prying objects, as this can damage the tool and lead to dangerous accidents.
A dull blade increases the risk of injury, as it requires more force and is more likely to slip from the material being cut. Therefore, it is essential to sharpen the knife regularly to maintain optimal sharpness. Additionally, proper cleaning and drying of the knife are necessary to prevent corrosion and bacterial growth. Periodic inspection of the handle and blade is recommended to check for cracks, chips, or looseness. If any damage is detected, the knife should be repaired or replaced immediately.
When using the knife, focus solely on the task at hand—avoid talking on the phone, watching television, or other distractions while cutting. Ensure proper lighting in the workspace for better visibility and control. Please note that some countries or regions have laws restricting the ownership and carrying of knives. Before purchasing or using this knife, verify that its use is legal in your location according to applicable regulations.
Following these safety guidelines will help ensure safe and effective knife use, minimizing the risk of accidents and extending the lifespan of the tool.
Carry Box is a unique set signed by Extrema Ratio, addressed to collectors and enthusiasts of premium knives. It consists of four elements: a limited edition BFK EVO folding knife , a classic baseball cap, an elegant wallet made of high-quality leather and a certified carbon card - all packed in an exclusive gift box. Each item was created with the highest quality materials and made with attention to detail, reflecting the technical and utilitarian nature of the brand.
At the center of the set is the BFK EVO LE folder , produced in a quantity of only 500 pieces. The knife has an individual serial number (here: 289/500), and its design is based on the recognizable Basic Folder Knife line. Blade made of Nitrogen steel has been stonewashed finished with a laser camouflage pattern, giving each piece a unique look. The Axis Lock mechanism ensures reliable locking and smooth operation of the blade, while the anodized aluminum grips guarantee durability and comfort. The whole set is completed with a deep carry clip and a paracord with a metal tip.
Other elements of the set complete its utilitarian and collectible character:
- Extrema Ratio cap - minimalist, in a classic cut, with an embroidered logo and adjustable back.
- Leather wallet - elegant, with embossed brand emblem, equipped with practical compartments.
- Carbon Card - a certificate of authenticity made of real carbon fiber, with an emblem. The bottom edge is sharpened, making the card a useful self-defense tool.
Carry Box is a design for people who appreciate tactical design, limited character and the highest quality - a set that combines functionality with the prestige of the Extrema Ratio brand .
BFK EVO LE folding knife
Blade made of Nitrogen steel, with a tanto profile with a reinforced tip, was finished with stonewashed technique with a laser camouflage pattern. This material combines corrosion resistance, high hardness and flexibility, making it an optimal choice for utility knives. The Axis Lock system provides secure operation and locking for heavy use, while the deep carry clip allows for low-profile carry. The anodized-coated aluminum grips are lightweight yet scratch- and impact-resistant. Paracord with a metal tip allows for personalization and easy grip.
Accessories:
- Extrema Ratio cap: made of airy material, with a classic cut and discreet logo; fastened with Velcro.
- Wallet: sewn from high-quality leather, features multiple compartments and a subtle logo embossed in the corner.
- Carbon Card: minimalist certificate made of carbon fiber, with laser engraving of logo.
Technical data:
Product number: | 04.1000.0174/B-KIT |
Product Name: | Carry Box 289/500 |
Overall length: | 168.0 mm / 6.61" |
Blade length: | 67.0 mm / 2.63" |
Blade thickness: | 2.75 mm / 0.1" |
Handle length: | n.d. |
Handle thickness: | n.d. |
Weight: | 85.0 g / 2.99 oz |
Blade material: | Nitrogen |
Blade hardness: | n.d. |
Blade grind: | Flat |
Blade finish: | Stonewashed with laser engraving |
Handle material: | Aluminum |
Handle finish color: | Black |
Backspacer material: | Aluminum |
Backspacer color: | Black |
Clip: | Left/Right, Tip-Up |
Clip material: | Stainless Steel |
Pivot mechanism: | n.d. |
Locking mechanism: | Axis Lock |
Opening method: | Manual, thumb hole |
Additional accessories: | Baseball cap, leather wallet, carbon card |
Designer: | Extrema Ratio |
Brand: | Extrema Ratio |
Manufacturer: | Extrema Ratio, Italy |
Country of origin: | Italy |
Developed by: the Sharg®







