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 surface.Reduce the need for grinding and polishing. Prevent the tiles from moving during curing.Suitable spacer: 2mm-8mm spacerTile thickness: 5mm-20mmUse 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 gap.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+redMaterial:pp+stainless steelsize:67 x 37mmPackage Contents:50 x Tile Levelers100 x Spacers1 x WrenchOnly 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.