The colour of the horn on the handle can vary, it comes in black and blond (pictured). 

Detailed Spec

Brand: Hitohira ひとひら
Producing Area: Seki-Gifu/ Japan
Profile: Petty
Size: 150mm
Steel Type: Stainless Steel
Steel: Mono Unclassified (Stainless Steel)
Handle: Ho Wood & Buffalo Horn Ferrule Octagonal
Total Length: 283mm
Edge Length: 150mm
Handle to Tip Length: 162mm
Blade Height: 29mm
Thickness: 1.8mm
Handle Length: 122mm
Weight: 54g
Hand Orientation: Right-Handed
Hardness: 60±1HRC