Easy to use: Two 6-inch vacuum suction cups grip the surface securely. The height adjustment enables precise leveling, and the tightening adjustment for the seam connection is straightforward to operate. Premium quality: The seam setter is built from high-quality metal, with two hand-pump vacuum cups made of natural rubber. It is robust and provides strong, reliable holding power. Wide range of applications: This worktop planer/seam setter is suitable for a broad range of smooth, flat material surfaces, including marble, stone, floor tiles, ceramic tiles, glass, and plastic. It performs well on very smooth surfaces as well. Suction performance: Supports up to 155 kg vertical suction and 175 kg horizontal suction. The naturally thickened rubber pads enhance the grip and overall suction strength. Use scenarios: - Install and align seams on marble or granite countertops, then secure panels during bonding. - Hold and position ceramic or porcelain tiles during layout and edge finishing to prevent movement. - Align and fix glass or smooth plastic panels in fabrication or installation projects for precise seam alignment.