Lifting Clamps: Lifting clamps chain length adjuster, non-slip and wear-resistant, comfortable to use Alloy Steel Forging: High-grade alloy steel, forged and processed at high temperature, is safe and has a long service life Quality Screw Accessories: Selection of first-class hardware accessories screws, resilient , non-slip more convenient and safer Polyurethane Rubber: The special material does not hurt the stone, the texture design increases the friction, and the stone will not slide off easily [Wide Application]Lifting tools to move granite, curb, stone slab, marble, brick, etc. Widely used in yards, construction sites, road and bridge engineering and other fields., Manufacturer: HCZKIUJY