Green Tree psychedelic mushroom stud earrings are made in the U.S.A. Style # 3109 Size 0.4" x 0.5" Psychedelic Mushroom Stud Earrings Comes as shown. Made from sustainably sourced wood and 90% recycled display cards. Earstud is Silver Plated Brass, hypoallergenic and applied with a non-toxic water based glue. Stainless steel silver plated earnut included.