Techo-Bloc 007877 Raffinato 180 Smooth 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.