QSP Knife Jumping Jack Slip Joint Blue. 5" (8.89cm) closed. 2.75" (6.99cm) satin finish 14C28N Sandvik stainless blade. Blue smooth bone handle. Stainless bolster(s). Boxed. Specifications for QSP Knife Jumping Jack Slip Joint Blue: Manufacturer: QSP Knife Blade Length: 2.75 cm 6.99 cm Closed Length: 8.89 in 3.5 in Blade Material: 14C28N Serrated: Plain Knife Application: Everyday Carry Handle Material: Bone Blade Finish: Satin Blade Grind: Flat Package Type: Box Hand: Ambidextrous Package Contents: QSP Knife Jumping Jack Slip Joint Blue