Goldbug Collection’s Caterpillar Cuff The pliable cuff can be gently bent to fit most wrists. 18K Gold-Plated Brass, colored CZ stones Care: To ensure a longer life for your Goldbug pieces, please do not shower, swim, or sleep while wearing them, and keep them away from sunscreens, lotions, and perfumes. To clean your pieces, rinse with warm water and gentle soap. Like our bug friends, sadly, costume jewelry doesn't live forever!