Rock untying barrels have been developed for use in rock fall prevention procedures in underground operations and are specially designed for optimum performance. This product is made from a special aluminum alloy tube and smooth or corrugated steel bars, pressed at both ends (points). Steel bars are heat treated and molded according to customer requirement. Additionally, the bars can have rubber supports of different diameters and rubber-coated steel handles on one end. Tip shapes available: Angled, Flat, Pencil. Types of handle: Triangular and triangular covered with rubber. Types of insurance: Rubber of different diameters and lengths.