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 designed to clean 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 sport carburetor jets. FLEXIBLE DESIGN - Effectively reaches into tight, curved spaces where obstructions are difficult to remove. Constructed with high-density nylon bristles and stainless steel for durability, corrosion resistance, and excellent elasticity. Spiral bristle design stays intact and enables thorough cleaning of internal surfaces. REUSABLE CLEANING 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 replacement support for any issues with the pin or wire cleaners. Designed to last through extended use on carburetors, spray guns, and similar equipment. VARIED SIZES INCLUDED - Set includes 10 cleaning needles and 5 brushes. Overall length: 4.53 inches (115 mm). Brush diameters: 2mm, 3mm, 4mm, 5mm, and 7mm. Needle diameters: 0.4mm, 0.5mm, 0.6mm, 0.7mm, and 0.8mm.