Features: Wear-resistant, recyclable. Easy to use in DIY operation. Balance tiles in the same horizontal position. Improve the installation speed of tile. Reduce the fatigue/pressure of installers. There is hardly any crackless, flat surface. It reduces the need for grinding and polishing. Prevent tiles from moving during solidification. Specifications: Name: Steel Needles for Tile Leveling System Material: stainless steel Length of steel needle: 32mm/1.26" Thickness of steel needle: about 1.5mm Type:100pcs Steel Needles Use Tips: Lay the first tile, leaving more than 2mm (with cross gaskets). Close to tile. Insert T-pins along the gap between tiles. Then rotate 180 degrees and the T-needle is stuck at the bottom of the two tiles. Adjust the lid with a hand/special wrench until the two tiles are on the same level. After leveling, about 5-6 hours, before the cement/binder is completely dry, rotate the lid in reverse and take out the 180 degree T needle until the word is removed. Avoid not removing the T-tile leveling system: 1. Ceramic tile gaskets are 2mm or more (cross gaskets are recommended) 2. When leveling, the cement or tile adhesives around T-type leveller must be cleaned. 3. Remove the T-type straightener about 5-6 hours after leveling before the tile binder or cement is completely dried. Included: 100 X Steel Needles