Robust and durable alloy steel structure: These stone lifting clamps are made of thickened alloy steel and forged at high temperatures, designed for safety and durability. They are not easily broken and have excellent durability and stability, making them suitable for long-term use in harsh environments. Adjustable to accommodate different stone sizes: These clamps feature multiple adjustment holes with freely adjustable opening widths to accommodate various stone sizes. This versatility ensures perfect handling for all your stone handling needs, combining practicality and convenience. Anti-slip rubber grips for a secure hold: These grippers feature polyurethane rubber contact surfaces that firmly hold the stone without causing damage. The textured rubber surface increases friction, effectively preventing the stone from slipping, making them ideal for fragile or polished stone products. Ergonomically designed for heavy-duty work: These pliers have a maximum load capacity of 770 lbs, an adjustable opening distance from 40-300 mm, and are robust, durable, and highly stable. The ergonomic pull ring design and superior casting process ensure high strength, toughness, and long-lasting lifting performance. Versatile and suitable for various industries: Designed for a wide range of applications, including factory hoisting, road construction, and stone transportation. Suitable for handling materials such as marble, granite, concrete slate, hollow bricks, and rectangular bricks, it is a multi-functional tool for various projects., Manufacturer: JYBNBBE