These pins are made of polymer clay with a layer of resin on their back to secure the pin needles and to add structural strenght. While polymer clay is durable, please do not handle with force, don't drop or throw it into your bag or jewellery box.
Polymer clay is waterproof, but please avoid long term contact with water, do not swim or shower with your jewelry on.
Avoid contact with perfume or chemicals.
If your pin would get stained, clean with a soft cloth and warm soapy water. If the part is resin coated, only use baby wipes on the area.
Choking hazard: keep away from the reach of children, not suitable under the age of 10.