QEP Wedge Spacers for Wall Tile Spacing and Alignment are designed to ensure even grout lines between tiles during installation of porcelain stone marble and ceramic tiles on vertical tile applications. Their unique wedge design allows them to be pushed in or out to adjust the position of tile up to 1/8 in. while effectively holding the tile in place. The PVC manufacture of these spacers make them strong to perform and lightweight to handle. They do not slip or slide on vertical surfaces and will not compress. Bag includes 500 wedge tile spacers. Crucial for achieving a level first row of wall tile Ideal for maintaining level horizontal grout lines during installation Avoids tile slippage on vertical surfaces - will not compress Can be used for up to 1/8 (3 mm) 500 flexible wedge spacers per pack