The U-Cara Backer is a structural building block that is part of the U-Cara Multi-Face Wall System. This revolutionary system makes it possible to design walls, pillars, planters, fire features, grill islands and more, using a wide array of different U-Cara fascia panels to create color, pattern and texture combinations like never before. U-Cara Sure Track Backer blocks feature molded horizontal rails, allowing for U-Cara fascia panels to easily mount securely on the block. Standard Sure Track Backer blocks can be used to construct single or double-sided vertical elements with ease, while the large Backer Blocks are used to construct retaining walls up to 10 feet (3 m) or higher. Ask your contractor for details, and about our U-Cara Modular and Wall Mount systems.