GOOD MATERIAL - These cleaning tools are helical and made of high-density nylon and stainless steel. They are rust-proof, do not shed bristles, and are resistant to deformation. Includes a lightweight and compact aluminum carrying case for convenient storage and portability. MULTIPLE APPLICATIONS - The brushes and needles are ideal for cleaning small orifices such as nozzles, pneumatic tools, air tools, camping stoves, and more. Suitable for use with auto motorcycles, ATVs, welders, tattoo devices, lawn equipment, snow blowers, and various power sports carburetor jets. FLEXIBLE DESIGN - Designed to reach tight and curved spaces that are difficult to clean. Constructed with high-density nylon bristles and stainless steel for durability, corrosion resistance, and excellent flexibility. Spiral bristle design stays intact and effectively cleans the interior surfaces thoroughly. REUSABLE TOOLS - This carburetor cleaning brush kit is durable and can be used multiple times. Made from high-quality stainless steel that resists rust and is easy to clean. We offer a replacement service for any defective pin or wire cleaners. VARIED SIZES - Includes 10 cleaning needles and 5 brushes. Overall length: 4.53 inches (115 mm). Brush diameters: 2mm, 3mm, 4mm, 5mm, 7mm. Needle diameters: 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm.