Measurements & Details: • The shell charms are natural and slightly vary in size and shape from about 0.75" to 1" (2cm to 3cm). • The chain is available in various lengths 16" to 30" (41-76cm). • This seashell necklace comes in a gift box - perfect for gift giving and safekeeping. • Buying this nautical necklace as a gift? Add a handwritten card with a message of your choice.