The Dear Mum necklace is made of ethically sourced silver and gold. The envelope can be opened and a small note can be placed inside. The chain is made of ethically sourced silver with pink carneols. The length of the chain is 50 cm and is adjustable to 45 and 40 cm. Every Sam & Haas piece is made of sustainably sourced silver and gold, meaning that it is mined under good conditions, providing for the miners and taking care of the environment.