Jack Wolf Knives Feelbetter Jack Bolster Lock. 13" (10.49cm) closed. 3.38" (8.59cm) satin finish S90V steel reverse tanto blade. Purple abalone handle. Titanium bolster(s). Pocket clip. Polished titanium backspacer. Boxed. Specifications for Jack Wolf Knives Feelbetter Jack Bolster Lock JW54398: Manufacturer: Jack Wolf Knives Blade Length: 8.6 in 3.38 in Closed Length: 10.5 in 4.13 in Package Contents: Jack Wolf Knives Feelbetter Jack Bolster Lock