Dual hand cup with ratchet for pulling and aligning of work-pieces in assembly work, designed to pull two flat surfaces or seams together. Perfect for any situation in which flat, non-porous surfaces need to be pulled together, shuch as marble and granite, flooring mirrors, glass, plastic. Material: Aluminum alloy and rubber, durable, and sturdy. Application range: Suitable for smooth and flat materials such as marble, slate, floor tiles, ceramic tiles, mirrors, glass, plastics, etc. Use scene: gap adjustment, height adjustment, Manufacturer: SOYWIM