Where are all the beachside souvenir shops? These seashell keychains are perfect little souvenirs. The keychains are made of durable acrylic. The gold hardware and leather connector is the perfect accent to these custom keychains. Acrylic portion of the keychain will measure approximately The backside of the acrylic is flat. I use high-quality materials and a precision laser to provide the perfect product each time. The keychain has a 1" keyring connected with a leather connector. Please note that these are NOT metal, and acrylic is a form of plastic.