Tough1 Premier Medium Bristle Brush The perfect brush for everyday grooming! The sturdy medium-stiff polypropylene bristles work well to brush away dirt and grim from your horse's coat. This brush is constructed with an unbreakable block with recessed finger grip making it comfortable and durable for daily use. Measures 8 1/4" x 2 3/4" with 1.5" bristles.