Check the listing for details. Jump Ring Opening Tool, 17mm Jump Ring Opener Tool(Multicolor, Pack of 2). Condition: New. Listed at 11.92 USD. What is this?The jump ring opener is a tool designed for jewelry making. It can help us efficiently complete jewelry assembly and adjustment work. It is often used in craft projects, jewelry making, jump ring opening and closing, jewelry repair, etc. It is very suitable for DIY craft project enthusiasts and jewelry making enthusiasts.What will I get?Material: Stainless SteelColor: MulticolorOverall Height: 8mm / 0.31inchOuter Diameter: 19mm / 0.75inchInner Diameter: 17mm / 0.67inchGroove Width: 1mm / 0.04inch; 2mm / 0.08inchThe package contains: about 2 pack of Jump Ring Opening ToolAre there any advantages of the product?Durable Stainless Steel Material: Made of stainless steel, durable and wear-resistant, not easy to deform, and can be used for a long time. The smooth surface does not hurt your hands.