Tile levelling kit: it is a great tool that helps DIY enthusiasts and professional tilers. Also pay attention to flatness between the tiles to prevent them from moving during the cement laying process. Achieve a perfectly flat surface without cracking Precise leveling: the tile leveller uses the force principle to align the tiles flat. For use with brick joint widths of 1.5mm - 6m and all formats and panel thicknesses from 5mm - 17mm. And the included special key makes it easy to attach or remove Easy to use: simply insert the T-shaped needle into the gap and turn it 90 degrees to attach it to the base of the tile. Then turn the lid clockwise to bring the two tiles to the same height and create a perfectly flat surface. After 4-6 hours, before the cement/glue hardens, remove it for reuse by turning it in the opposite direction with a wrench. High quality: the tile levelling system kit is made of high-quality PP material and hard nickel-manganese steel, which is characterised by excellent toughness, high-quality oil resistance, heat resistance and corrosion resistance. It does not tend to crack and always ensures an even spacing and better levelling of the tiles. Wide range of uses: the tile leveling system kit is compatible with all types of tiles and fits exactly on the tiles. Includes wall tiles, smaller floor tiles and mosaic tiles. Can be used in a variety of scenarios including outdoor tiles and courtyard tiles.