This strong, lightweight wall base block is a great foundation for use with rear-lipped Anchor™ retaining wall products and for Anchor freestanding wall systems. Integral hand-holds make this base block easy to place and to lift when repositioning. The hollows on the bottom surface help seat the block into base aggregates for better leveling. And, no core-fill is needed. Torpedo base blocks are shaped to fit together to hold their position as they are placed and can be used for curves, corners, columns, and straight walls.