The GLS wedge tile levelling system prevents tiles from moving or warping while thin-set or adhesive cures. It helps increase tile installation speed and eliminates floor and wall tile lippage.The GLS Wedge Levelling System is perfect for tile-to-tile levelling.Save a great deal of time and money during your next tile installation with the GLS Wedge Tile Levelling System. Whether you are a professional installer or a DIYer,this system will increase the time it takes to complete a project and reduces installer fatigue. Levelling wedges can be removed from the bases/clips when your thin-set mortar or adhesive has fully cured and be used multiple times. The clip’s easy snap-off design allows you to quickly break them off making your tiles ready for grouting in seconds.