This is a great mustard seed faith gift. It is a stainless steel laser-engraved charm with “I have a mustard seed and I'm not afraid to use it” on it. The engraved charm measures approx 3/4 in across. It also has a small single mustard seed charm. The keychain comes with a card with the scripture of Matthew 17:20. This item contains small pieces and is not intended for children under the age of 14.