This stone clamp is a versatile tool that can lift and transport heavy materials, including marble and granite. It is commonly used in home improvement, construction sites, factories, mining, ports, buildings and stone processing plants. Details Anti-slip Rubber Pads: It has high quality non-slip polyurethane rubber pads with anti-slip textures on the inside to protect the surface of the slab from damage and enhance friction to prevent the slab from slipping during handling. Thicker Screws: Thicker screws were deliberately chosen as a safety measure to ensure the stability of the stone during clamping and movement. Sturdy Spring: It acts as a cushion during work, increasing safety and making it easier for you to adjust the opening of the jaws. Specification Material: Carbon Steel, Polyurethane Rubber Color: Red, Yellow Product Type: Stone Clamp 8 inches Technology: Laser Cutting Plate Thickness: 10mm/0.39in Diameter of Self-locking Nut: 16mm/0.63in Opening Size: 10-24cm/3.94*9.45inch Maximum Load Capacity: 330kg/727.5lbs Package Size: 45*26*12cm/17.7*10.2*4.7in Gross Weight: 8kg/17.6lbs Package Included 1* Stone Clamp