For anyone who has a nickel allergy to body jewelry, the solution is simple: ditch the metal. One alternative is acrylic, a non-reactive material that’s lighter than metal or glass. Acrylic plugs come in an increasing array of styles, but the main thing that separates them is their material. Hard acrylic plugs or tunnels have little give to them, while soft acrylic tunnels and plugs are flexible.
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