Part of the T-Lock System The Perfect Level Master T-Lock System eliminates floor and wall tile lippageSaves time as ensures that your tile installation will be leveled on the point tile to tilePrevents tiles from warping as your thin-set curesMade in European Union with Highest quality and precisionKit includes 100 T-Lock Red Wedges (Clips Sold Separately) Installation Spread Adhesive and Insert Clips After having spread the adhesive, remove excess mortar from tile edges using trowel and insert clips underneath. Depending on the size of the tile, set one or more supports on every side. Insert Wedges Insert the wedge in the clip's support slot. Two clips and two wedges are recommended per square foot. Leveling To facilitate tile leveling, special adjustable pliers are recommended, although not required. Clip Removal After adhesive is set, remove the clips. You may use a rubber mallet or simply kick them out. To ensure a clean break follow the grout lines. Wedges Only This product listing only includes 100 wedges.Other items in the T-Lock system are sold separately.