Marley Kate Earrings are made with the finest materials. The polymer clay we use is the best quality, it is durable and light weight. The post and finishings we use are hypoallergenic, stainless steel, and gold plated. The posts are either secured with liquid clay while they bake, or uv resin to make sure they are durable and sturdy. When you shop with Marley Kate Designs you get a one-of-a-kind handmade pair of earrings that are personal to just you! Thank you for shopping with us!