The Husqvarna 597704601 305 Brush Kit includes 2 black brushes with a diameter of 8 1/2 inches, made of plastic and rubber materials. These brushes are designed for use on wheel models from the Husqvarna brand, and weigh 4 lbs each. Perfect for maintaining your lawn mower and outdoor tools, this brush kit ensures high quality and durability for all your gardening needs.