ATR Resolution 3UT100 Tile Leveling Alignment System 100 3 mm Offset Floors and Walls Spacing Plate Only System that leave clean grout line (no risk of spacers not breaking all the way) The only system removed without the use of force. Creates a lippage free surface Simple and quick to lay with only 2 elements: Spacer & Pre-Assemble Spindle. No Tools (GUN) needed! No expensive hand tools required