Quality screw accessories: Selection of first-class hardware accessories screws, durable, 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 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 Enhanced safety performance: The rubber anti-slip clamp head made of polyurethane rubber does not damage the stone, and the textured design prevents slipping, further enhancing safety., Manufacturer: HCZKIUJY