The Roy Cufflinks are made from solid sterling silver and are suitable for all inclusions (breastmilk, ashes, hair and fur) Colour options are shown in the photos above. Each piece is custom made by me ensuring amazing quality every time. I encase your precious inclusions in very high quality none yellowing epoxy resin, in a wide range of colours and effects for you to choose from. Please read the FAQ section for details of how much inclusion is needed, where this should be sent, and timescales for orders.