Schluter®-DILEX-BWS features trapezoid-perforated anchoring legs, made of recycled rigid PVC, which are secured in the mortar bond coat and provide edge protection for adjacent tiles. The profile separates individual fields in the tile covering and accommodates movement via the soft chlorinated polyethylene (CPE) movement zone, which also forms the visible surface. The movement zone is only 3/16" (5 mm) wide, matching common grout joint widths. The profile absorbs relatively limited movements, given the width of the movement zone. This should be taken into account when evaluating the requirements for a specific application. If larger movements within the covering are anticipated, the DILEX-BWS may be installed with greater frequency to create smaller fields, or the DILEX-BWB (3/8", 10 mm movement zone) may be used.