Extrema Ratio BF2 CD Linerlock SW 3.50 in Folding Knife. 7cm) closed. 3.5" (8.89cm) stonewash finish Bohler N690 stainless blade. Black anodized aluminum handle. Thumb stud. Pocket clip. Boxed. Specifications for Extrema Ratio BF2 CD Linerlock SW 3.50 in Stainless Steel Folding Knife: Manufacturer: Extrema Ratio Blade Length: 3.5 in Closed Length: 127 mm Blade Material: Stainless Steel Condition: New Additional Features: Pocket Clip. Weight: 0.5 lb Quantity: 1 Color: Black Package Contents: Extrema Ratio BF2 CD Linerlock SW