Made of material for durability and reliable performance. Closed bearing design provides smoother opening operation and reduces the chance of slipping, giving you precise control. Super large positioning screw and thickened rubber suction cup secure the positioner to ceramic tile and prevent movement at the opening. Designed for ceramic tile work; compatible with standard ceramic tile surfaces to ensure stable positioning during use. Benefits you can expect: improves accuracy, saves setup time, and minimizes misalignment during tile projects. Use scenarios: Tile installation on floors or walls: align tiles with consistent gaps and straight, repeatable positioning. Tile cutting or drilling preparation: hold the tile steady for precise marks, cuts, or holes. Grouting or adhesive setting: keep tiles in place to prevent shifting during the bonding process.