The combination bundle consists of both standard and corner blocks. The bundle configuration will ensure that the corner height and the standard height will be a lot more consistent to one another. Corner units will be used as standard units if the contractors does not need to build corners on the site, the corner units in the bundles serves as a dual role. The traditional corner/pillar unit bundles will still be available for those customers who need to build pillars. Pisa Smooth is a new segmental retaining wall system providing a linear modern aesthetic to any landscape project. The ideally sized block provides fast, efficient installation, with great contractor friendly features. Pisa Smooth features the ability for both battered (slight lean) retaining, or completely vertical orientation, for a versatile range of installation options. Easily create garden or large retaining walls, two-sided seat walls, pillars, planters or almost any other vertical element.