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Made of strong, light and springy 304 stainless steel, this eye pin is ideal for ear wires and is a great substitute for customers with metal sensitivities. The temper of stainless steel makes it a great fit for designs and mechanisms that need to retain their shape, such as pin backs and ear wires, but less well-suited to designs that require a malleable and highly shapeable wire. Eye pins feature an open loop that allows you to attach additional findings to your component designs or to easily create components that you can link together, creating more complex designs or chain. The most popular choice for most applications, 1/2-hard pins stand up well in most jewelry styles and still allow the wire to be formed as needed—then hold their shape reasonably well.