The Ultra-Thin Series Knives from Al Mar Knives by SUNEX Tools features a thin and lightweight design for everyday carry. Its stainless steel handle includes a pocket clip while maintaining a slim profile. The knife is available with a 2.7", 3.1", or 4" talon-style blade made of D2 steel with a hardness of HRC 59-60. The Ultra-Thin Series also uses ceramic bearing assist for opening and a folding frame lock to keep the blade in position.