The Mop Rub Brick will save your back. Two fluted 20 grit silicon carbide rub bricks fit securely within a sturdy aluminum bracket. The fluted brick is on a diagonal, which provides sharp edges to help with stubborn materials while carrying away the excess debris. Use with the clevis handle or adapter of your choice. A popular tool to create a smooth professional finish on block walls, wet tile, and concrete, especially excess cement from forms. The favorite tool for decorative concrete prep and applications. The rub bricks are replaceable (CF268-01), 2 are required. Stop kneeling or stooping to smooth down concrete floors used the mop rub brick while standing.