Mar-Co Field Bricks provide a new alternative in building Pitcher’s Pads and Mounds and Catcher’s and Batter’s Boxes. Offering an uncomplicated and quick installation, our Field Bricks are economical, very user friendly and practical. When used instead of sand-based materials, Mar-Co Field Bricks improve the stability and durability required for Pitcher’s mounds and Batter’s Boxes. These bricks are comprised of Mar-Co Mound Clay compressed into a brick (4” x 8” x 2.5”). They are compatible with existing clays and are easily maintained with Mar-Co Mound Clay.