Rare. The 5.11 Tarani C.U.B. Master 2.0 Karambit S30V is a folding knife designed for collectors and enthusiasts. It features a Karambit blade type made of S30V steel, known for its durability and resistance to corrosion. The knife was manufactured by 5.11 Tactical and is part of their Tarani series. The C.U.B. Master 2.0 model is an updated version of the original C.U.B. Master, designed by martial arts expert Steve Tarani.