Keep your patios and driveways clear of moss and dirt all year round with this Block Paving Brush Head. The wide brush is perfect for covering large areas whilst the tough, hard-wearing, steel wire bristles are ideal for removing moss and algae from paving and decking. This block paving brush head clears moss and dirt from patios and driveways all year round. Its wide brush head is perfect for covering large areas, while tough, hard-wearing steel wire bristles effectively remove moss and algae from paving and decking.