Material: Acrylic, Stainless Steel Hook/Post with Rubber Push Back Hypoallergenic (Lead/Nickel Free) ❤Hand-crafted with Love by Hylidae Boutique❤ Shop with us at www.hylidaeboutique.com *Jewelry Care* Proper care is needed to make sure your jewelry stays beautiful. Please remove jewelry before showering & swimming, and take them off before bed so they don’t get broken.