Techo-Bloc 007878 Raffinato Smooth 180mm Pillar/Corner/Edge Beige Cream. The smooth look of the Raffinato collection brings modern elegance to your tailored spaces. The 90mm high and 180mm high versions are packaged separately, allowing for a modular or completely linear design. This contemporary double-sided retaining wall is offered in an array of modern colours. This wall can be used to retain earth against erosion, create raised patios or subtly separate spaces with a blade wall. Raffinato is part of the dry cast collection.