These silicone rubber earring backs or stoppers are ideal as a replacement for your standard earring backs. Fantastic if you're a jewellery maker as a cheap alternative. Or if you have allergies to the standard metal ones, switching to these will be great for you. The clear design provides an invisible stopper for your favourite pair of earrings. These are great for those heavier, statement & dangling earrings as well as they are a tighter fit than standard earring backs. This reduces the heavy weight when your earrings are not sitting or hanging high enough & eliminate that pulling or stretching feeling in your earlobes. They are hypoallergenic, perfect for sensitive ears.