Abrasion and recoverable. Easy to carry out DIY operation. Keep the tile balance in the same horizontal position. Improve tile installation speed. Reduce the fatigue/stress of the installer. Almost no lip slip, flat . Reduce the need for grinding and polishing. Prevent the tiles from moving during curing. Use suggestions: 1. Lay the first tile, leaving a distance of more than 2mm (used with spacers). Close to the tiles. 2. Insert the T-shaped needle along the space of the tile. 3. Then rotate 180 degrees to clamp the T-shaped needle at the bottom of the two tiles. 4. Use your hand/special wrench to adjust the cover until both tiles are on the same level. 5. About 5-6 hours after leveling, before the cement/adhesive is completely dry, rotate the cap in the opposite direction and remove the 180 degree T-shaped needle until the words are taken out. Applicable gasket: 2mm-8mm gasket Tile thickness: 5mm-20mm Colour:As shown Material:PP + stainless steel Package Contents: 100 x leveling device 4 x wrench Only the above package content, other products are not included. Note: Light 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.