1、TOOL STEEL MATERIALS: Selected high quality tool steel materials, high hardness, durability and wear resistance, long term use. 2、SPRING TUBE BENDER KIT: Specifications include 5/8, 1/2, 3/8, 5/16, 1/4, suitable for most pipe sizes, and meet your diverse needs. 3、SUPER ELASTICITY: The protruding end makes the tube easier to slide, and restores the original shape after use, and is not easy to deform. 4、WIDE RANGE OF APPLICATIONS: These spring benders can be used for various types of soft copper pipes, aluminum pipes and other pipes. 5、PRACTICAL DESIGN: It is not easy to damage the line pipe when bending the pipe, easy to use, bending resistance, and high tensile strength. 5 x Spring Tube Bender Item Type: Spring Tube Bender SetMaterial: Tool SteelWeight: Approx. 300g / 10.6ozProduct Specifications: 5/8, 1/2, 3/8, 5/16, 1/4Scope of Application: Bending copper pipes, aluminum pipes and other pipes5/8 Product Size: Approx. 17x202mm / 0.67x 7.95in (For 16mm / 0.63in copper pipe)1/2 Product Size: Approx. 13x206mm / 0.54x 8.11in (For 12mm / 0.47in copper pipe)3/8 Product Size: Approx. 10x206mm / 0.39x 8.11in (For 10mm / 0.39in copper pipe)5/16 Product Size: Approx. 8.3x207mm / 0.33x 8.15in (For 8mm / 0.31in copper pipe)1/4 Product Size: Approx. 6.9x204mm / 0.27x 8.0in (For 6mm / 0.24in copper pipe)