Opening Paver Lifter Tool:Opening Size Can Be Adjusted Arbitrarily: The opening size is marked on the side of the product. The opening size can be adjusted freely and conveniently Material Transport Tool:Rubber Non-slip Chuck: Polyurethane rubber material does not hurt the stone, and the texture design can be non-slip to increase safety Hanging Concrete Block Slab Grabber:Thickened Steel: This vertical plate clamp is designed to lift and transport steel plates and structures in a vertical position Heavy Duty Steel Chain Pliers:Material: Made of high-grade alloy steel, processed by high temperature forging, with high safety and long life Durable & Reliable for Tough Job Sites: Built for demanding environments, these heavy-duty lifting clamps are designed to withstand frequent industrial use, offering dependable performance for material handling, installation, and transport operations., Manufacturer: asdchZen