HIGH-QUALITY ALLOY STEEL FORGING: Crafted from high-grade alloy steel and processed through high-temperature forging, these lifting clamps ensure exceptional safety and long-lasting durability. VERSATILE ADJUSTABLE OPENING SIZE: The opening size can be freely adjusted for convenience and adaptability. Detailed dimensions are available in the product description. NON-SLIP POLYURETHANE RUBBER GRIP: Designed with polyurethane rubber, the non-slip chuck protects stone surfaces from damage, while the textured design enhances grip and safety. RELIABLE VERTICAL LIFTING SOLUTION: Specifically designed for lifting and transporting steel plates and structures vertically, this clamp is a dependable tool for heavy-duty applications. EFFORTLESS VERTICAL OPERATION: Equipped with a swivel hook-up mechanism, the lifting clamp allows for smooth and easy operation in vertical positions. Our slate clamps are safe, durable, sturdy, and slip-resistant.