Wearable and recoverable. Easy to carry out DIY operation. Keep the tile balance in the same horizontal position. Improve tile installation speed. Reduce fatigue/stress of installers. Almost no slippery, flat . Reduce the need for grinding and polishing. Prevent the tiles from moving during curing. Suitable spacer: 2mm-8mm spacer Tile thickness: 5mm-20mm Use tip: 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 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. colour:Black+red Material:pp+stainless steel size:67 x 37mm Package Contents: 50 x Tile Levelers 100 x Spacers