Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Wearable and recoverable. Easy to carry out DIY operation. Keep the tile balance in the horizontal position. 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 : 2mm-8mm Tile thickness: 5mm-20mm tip: 1. Lay the first tile, leaving a distance of more than 2mm (used with spacers). to the tiles. 2. Insert the T-shaped needle along the tile gap. 3. Then rotate 180 degrees to the T-shaped needle at the bottom of the two tiles. 4. your hand/special wrench to adjust the cover until both tiles are on the 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 1 x Wrench Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.