Features: 1. Wear-resistant and reusable. 2. Easy to DIY operation. 3. Keep the tiles balanced in the same horizontal position. 4. Improve the installation speed of tiles. 5. Reduce fatigue/stress of installers. 6. There is almost no lip, and the surface is substantially flat. 7. Reduce the need for grinding and polishing. 8. Prevent the tiles from moving during the curing process. Use skills: 1. Lay the first tile, leaving more than 2mm (for use with cross spacers). Close to the tiles. 2. Insert the T-shaped needle along the gap of the tile. 3. Then rotate 180 degrees, the T-shaped pin is stuck at the bottom of the two tiles. 4. Adjust the cover by hand/special wrench until the two tiles are on the same level. 5. About 5-6 hours after leveling, after the cement/glue is completely dry, turn the cover in the opposite direction, and remove the 180° T-shaped needle until it reads, and then take it out. The package contains: 1 set of 50 X tile balancers