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 Note 1. Please do not use the equipment to lift rough stones, stones coated with medicines, wet stones, or any goods other than stones. 2. For safety reasons, please do not pass under the clamp or put your hands or feet in it while working. 3. Please note that this clamp has a maximum load capacity of 727.5lbs. Overloading is prohibited, and avoid operations that may cause the slab to fall off, such as diagonal pulling, impacting, or sharp turning. 4. During the operation, ensure that the clamp is positioned near the center of gravity of the stone slabs to prevent them from overturning or falling due to uneven force. Please lift and lower the slabs smoothly to avoid violent shaking. 5. After using the clamp, clean any sand and gravel residue promptly. Regularly check the nut and all connection parts for signs of wear or loosening. If any abnormalities are found, please repair or replace them immediately. 6. Please allow the slight color difference caused by the shooting light and 1-3cm error due to manual measurement, and make sure you do not mind before you order.