This 10 inch Sparta® Hi-Lo floor scrub brush from Carlisle has a 1-3/4 inch trim and works with a threaded handle. This brush head's crimped bristles wash easily and prevent gathering of mold and mildew. The split shape is efficient for cleaning flat surfaces, under counters, around equipment and along baseboards. This Hi-Lo floor scrub brush head provides maximum cleaning at 3 different angles to meet all your janitorial floor cleaning needs. The base resins used to produce blocks and bristles are made of FDA approved materials.