1. Wear-resistant and recyclable.It reduces the need for grinding and polishing. 2. Easy to use in DIY operation. 3. Balance the tiles in the same horizontal position. 4. Improve the installation speed of tiles. Hardly any cracks, flat surface. 5. Prevent the tiles from moving during the curing process. Commodity name: Steel needle for ceramic tile leveling system Use suggestions: Lay the first tile, leaving a thickness of more than 2mm (with washers). Close to the tiles. Insert the T-shaped pin along the space between the tiles. Then rotate it 180 degrees, and then clip the T-shaped pin to the bottom of the two tiles. Adjust the cover by hand/special wrench until the two tiles are on the same level. Avoid not removing the T-shaped tile leveling system: 1. Tile spacers are 2mm or larger ( spacers are recommended) 2. When leveling, the cement or tile adhesive around the T-type leveler must be cleaned. 3. About 5-6 hours after leveling, remove the T-type straightener before the tile adhesive or cement is completely dry. notes: This item only contains steel needles and does not include straightening machines. The leveler in the picture is just an effect. size: Diameter 1.5mm Material: stainless steel colour: silver Package Contents: 400 x Steel Needles Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.