The unique shim-like design allows wedges to be pushed in or pulled out to adjust the position of tile up to 1/8 in., while also holding the tile in place. Leveling adjustments are fast and easy, from your first row to your last. For "larger" tile spacers - You may also want to consider QEP LASH Tile Leveling Clips. Level, align, space and hold tile in place to prevent lippage, ensure a consistent finish and help correct tile bowing. The flat clips, part A of a two part system, grant even grout lines and align neighboring tile of the same thickness for a level surface. The wedges, part B, hold the tile at an even height for lippage-free results (sold separately). The QEP LASH clip and wedge system is used by professional and DIY installers alike to save time while providing a level and consistently spaced wall or floor. For quick and easy removal, clips are designed to break off below the surface of the tile.