ATR Tile Leveling Alignment System DIY Kit 3mm T Shape Walls & Floors Spacers 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 - For the advanced professional a simple socket and cordless drill may be used to remove and install spindles.