Romanstone Hardscapes Brutus™ MBR0106018 Desert Blend Straight Wall Cap - This wall cap is for use in the Brutus™ retaining wall system. The cap is placed on top of the retaining wall, providing a clean and finished look. Brutus™ high performance walls are the best option where great looks is as much of a priority as great performance and value. Lovely color blends and low cost, make Brutus™ an excellent choice for medium to large scale retaining walls.