MTECH Executive Titanium Rainbow Flame Spring Assisted Folding Pocket Knife MTECH Executive Titanium Linerlock Spring Assisted Knife. 7 7/8" (20cm) opened. 4 3/4" (12.1cm) closed. 3 3/8" (8.6cm) Blue titanium finish 440 stainless steel assisted opening blade with extended tang. Titanium rainbow finished handles. Rainbow flame stainless steel pocket clip.