Features NON-RUST AND DURABLE: The spring tube bender is rust-proof and durable, made with exquisite craftsmanship and easy to use FOR VARIOUS TYPES OF SOFT COPPER PIPES: Can be used for water and wastewater transportation for water supply and disposal. Suitable for various types of soft copper tube manual domes WIDE RANGE OF APPLICATION: Can be used for copper pipes, aluminum pipes, thin-walled steel pipes, etc., bringing much convenience to your life SPRING STEEL MATERIAL: Made of spring steel and returns to its original shape after use. Non-toxic, can be used indoors and outdoors 5 TYPES OF OUTER DIAMETERS: Providing 5 types of spring benders with different outside diameters, including 5/8", 1/2", 3/8", 5/16" and 1/4". Suitable for most pipe sizes to meet your different needs Specification: Item Type: Spring Tube Bender Set Material: spring steel Specification: 1 x 5/8 inch 1 x 1/2 inch 1 x 3/8 inch 1 x 5/16 inch 1 x 1/4 inch Package list: 5 x Spring Tube Benders Package List 5 x Spring Tube Bender