ATR Tile Leveling Alignment System Offset Layout 250 Kit 2mm, 190 Sq Ft Brick Layout.Offset layout for use with brick pattern, subway layout, herringbone, etc.Kit Includes: 100 T Shape Spacers, 100 Edge Spacers, 50 (Re-Usable) Pre-Assemble Spindle, 10mm socket (1 per customer). For Jobs Approximately 190 sq ft Coverage Area.The ATR is a simple, innovative and very easy-to-use tile leveling system that would result in professional smooth finishes. A 2-piece system that eliminates lippage in tile installation.Comes in 2mm (Blue) or 3mm (Red) spacers. More Kits available.Grout spacer 3/32" (2mm) - Tile thickness (1/4 - 3/4) (6mm-20mm) 15/64 - 51/64Advantages of ATR Tile Leveling: With ATR you only need 1 cross spacing plate for 4 tiles NOT 4 Clips like every other Leveling System. Very easy to learn and use at any skill level. No Tools (GUN) needed! No need for expensive hand tools. Simple and quick to lay with only 2 elements: Spacer & Spindle. The only system that removed without the use of a force. Only System that leave clean grout line (no risk of spacers not breaking all the way). Creates a lippage free surface. Keeps tiles in place while drying. All-in-one grout spacing and tile alignment system. Professional finishes every time. Suitable for floors and walls. Suitable for indoor and outdoor uses. Re-usable spindle. Australian design and Australian made. How to use 3 Easy steps Spread thinset install tile. Screw spindle into spacing plate, Slide spindle with spacing plate attached in between two tiles. Tighten spindle clock wise firmly until all four corners are aligned flush. Remove Re-usable spindle once tile adhesive is dry.