Acrylic is very lightweight so you can enjoy large, statement earrings comfortably all day. - Made with holographic iridescent acrylic - Size: Approximately 2 inches in length measured from earring hook. - Earring hook is made from surgical stainless steel Care Instructions: - To clean: Wipe with a microfiber cloth to remove any dust - Avoid contact with perfumes and lotions as these can react with acrylic and cause discoloration in some cases. We recommend putting on your earrings after getting ready - Although acrylic jewelry is durable, it is still a delicate material. We recommend storing them on a jewelry stand or box when not in use. - Avoid wearing or submerging in water, please don't shower in them! - We also recommend not sleeping with your earrings on STEM Earrings, Flask Earrings, Beaker Earrings, Science Teacher Earrings, Science Jewelry, Nerdy Jewelry, Nerdy Earrings, Geeky Jewelry, Geeky Earrings