Butterfly Backs Gold & Silver
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4 Pair Butterfly Backs, 316L Surgical Stainless Steel.
This is a set of eight (4 pair) silver-coloured surgical stainless steel butterfly backs supplied in a heat sealed packet. Use them as spares or replacements for the backs supplied with your original earrings.
Our stainless steel is a surgical steel with the 316L designation. Just like any other steel, this steel contains nickel. However, the nickel release rate for 316L surgical stainless steel is well below the allowable value given in the EU nickel directive, which makes it hypoallergenic and well suited to use in piercing studs and fashion earrings. This steel is also used for medical purposes, such as surgical implants, which remain in the human body for a lifetime without any harmful side effects.