Moving heavy stone slabs just got way easier and safer! These professional-grade carrying clamps are game-changers for anyone working with granite, marble, glass panels, or other heavy sheet materials. Each set includes 2 clamps that can handle up to 660 pounds total when used together. The rubber-padded jaws grip securely without scratching or damaging your materials, and they adjust to handle thicknesses from 3mm to 45mm (about 1/8\ to 1 3/4\). The gravity-assisted design means the more weight you lift, the tighter they grip - pretty clever! Made from durable aluminum with vulcanized rubber that won't slip or mark your surfaces. So much safer than trying to lift heavy panels by hand or with makeshift solutions. Perfect for countertop installers, stone fabricators, glass workers, or serious DIYers taking on big projects. The double-handed design gives you good control and balance when moving awkward-sized materials. Your back will thank you for not straining with improper lifting techniques. Whether you're moving materials around the shop or installing at a job site, these clamps make the work faster, easier, and much safer. Professional quality without the professional price tag!