EXCELLENT MATERIAL: The tile leveling surface is made of pp plastic, the edges are smooth and do not hurt your hands, strong and durable, impact resistant and good toughness. STABLE CHASSIS: The bottom disc design can fit the tiles tightly, accurate measurement and precise joint retention can improve the speed of ceramic tile installation and reduce installer fatigue/pressure. NO DAMAGE TO CERAMIC TILES: T split pins are made of thick stainless steel, which has high hardness and is not easy to damage ceramic tiles during the leveling process. SAVE TIME: Directly tighten by hand, with 1 special wrenches can reduce grinding and polishing time. Prevent tiles from moving during the curing process. It is easy to assemble without any tools, saving time and effort. VARIOUS USES: Adjust the floor or wall to maintain the fit and horizontal position between tiles to avoid unevenness.