4 in. Grey Terrace Wallblock

The Terrace Wall Retaining Wall System enables you to build straight, curved or terraced walls to fit the contours of your yard. Use it for retaining or terrace walls up to 2 feet high: patio, lawn or sidewalk edging, garden or flowerbed borders and tree rings. Maximum wall height not to exceed 2′. Minimum Radius is 2′ 2″.