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Functionality at its finest. Proterra’s™ M-Lock technology ensures a stable structure, even in a true vertical installation. This engineered retaining wall incorporates a reversible split/smooth texture for increased design options, as well as false joints on the smooth surface for added patterning and aesthetic appeal. We even included built-in cutting guides for half-block and 45° corners. The coping-step unit is stocked in colours as an attractive, stand-alone system.