Construction: Crafted with robust stainless steel and brass bristles and sturdy galvanized iron handles, these brushes are designed to handle tough cleaning jobs. Note: Brushes come with a protective oil coating; wash with paint thinner before first use. Comprehensive Cleaning Kit: This set includes 14 wire brushes, each 12 inches long, secured on a convenient key ring. Perfect for reaching deep into pipes, tubes, and other narrow spaces to dislodge debris and buildup. Ideal for Multiple Uses: Suitable for cleaning automotive parts, lab equipment, and intricate machinery components. These brushes thorough cleaning without damaging sensitive areas. With both brass and stainless steel bristles to tackle various cleaning challenges. Flexible and Efficient: The different sizes and types of brushes included in this set highly adaptable for cleaning tubes, cylinders, or narrow spaces where rust and debris accumulate., Weight: 0.77492485093 pounds, Manufacturer: Aboiled