Convenient They are crafted to be easily installed, reducing the need for grinding and polishing. Applicable sizes Suitable for tile gap should be between 2-8mm. Reusable: The tile leveling system can be reused, and it only needs to be removed before the cement is completely dried, thus saving the installation cost. T-shaped steel pin adopts circular design, which can rotate without damaging tiles. Easy to use: Tile leveling system kit does not need other auxiliary tools. Just insert the T-shaped steel pin along the gap of the tile, rotate it for 90 degrees, press the black hand cover to adjust the tile to level, wait for 3-5 hours, and take out the tile leveling machine before the cement dries. Easy to Use They can be easily fix or remove with special wrench. (The special wrenches are included). The Tile Leveling System Kit is compatible with all kinds of tiles and can fit the tiles tightly., Manufacturer: SFQEVHRZ