The Clear Protection plate was designed for an increased level of protection, and functionality for most available tile leveling systems.  Comes in 100pc boxes. Works on rotating, wedge, or strap systems.  Also works for 3/16" Spin Doctor Bases and LevTec Tile Leveling System.  The Clear Protection Plate serves four functions:

• Eliminates friction on the material force and converts lateral force into vertical pressure.
• Prevents delicate material such as natural stone or glass from scratching and also prevents premature wear on components.
• Prevents mortar from squeezing up through the grout joints.
• Transparent view allows unobstructed view of grout joints.