Features: 1. Dual hand cup with ratchet for pulling and aligning of work-pieces in assembly work, designed to pull two flat surfaces or seams together. 2. Total length: 380mm, rubber thickness: 6mm, Suction disc diameter: 12mm. 3. Perfect for any situation in which flat, non-porous surfaces need to be pulled together, shuch as marble and granite, flooring mirrors, glass, plastic. 4. Suction weight: 50KG / 110.2LB / 110.2OZ 5. Material: Aluminum alloy and rubber, durable, and sturdy. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. 2. The color of the hand holding position is random, and the style is random 3. Rounded edge and diamond-shaped edge two random delivery Specification: Material: Aluminum alloy+rubber Size: total length 380mm, Suction disc diameter: 12CM Suction weight: 50KG / 110.2LB / 110.2OZ Rubber thickness: 6MM includes: 1 x Stone Seam Setter