TOPWAY Multi Function Tile Levelling System 100Pc Cross Type
Unlike the normal leveling wedges and pliers, this new system doesn't require any tools unless need to be tightened very hard, (the simple tool is included).
Save lot of ££ by using them again and again, after the tiles are setted simply twist the screws anti clockwise and remove the main anchor, you may need to hammer it gently.
The steel part allows you to use them with the tile which gap is from 1.5mm up to 6mm.
Thickness of ceramic tile: 5-17mm
100 sets come with one wrench.
For short video how it works please search youtube for 347827.