The cute pozette earrings are my graphics transferred to a special polymer and then cast in resin for durability and extra shine. The case is made of HYPOALERGENIC steel (Surgical stainless steel). Dimensions of the acorn approx.: width x height x depth approx.: 10x12x1.5 mm. and each piece may be slightly different from what you see in the picture, the material is a little unpredictable, but that's what makes them original :-)