Shop Cold Steel Trench Tanto Point Rubber Black. A training weapon should approximate the size, heft and feel of the real thing. Though wood is effective and elegant, it can rot, crack, chip or splinter. Cold Steel has the solution–training weapons in the heaviest grade polypropylene, duplicating length, size, weight and feel. Summary of Cold Steel Trench Tanto Point Rubber Black Knife (Black Stonewash) CS 92R80TZ Construction: Santoprene; Color: Black; Overall: 13.5″; Blade: 7.5″ l Rubber l Standard Edge; Handle: Black l Rubber; Other Info: Black Santoprene construction. Tanto blade. D-guard handle.