101/5000 HIGH QUALITY - Our products are made of durable and long-lasting stainless steel for durability and long service life SIZE - Our products can be used to expand copper tubes between 6 and 22 mm in diameter REASONABLE DESIGN - Ergonomically designed handle with a rough surface for a comfortable grip and anti-slip effect, makes your work efficiently. REASONABLE DESIGN - Ergonomically designed handle with a rough surface for a comfortable grip and anti-slip effect, makes your work efficiently. MULTIPLE USES - The hinge prevents the handle from wobbling and ensures stable operation to ensure your work is safe.