High Quality Acrylic is used for the both the Ornament and Keychain. The ornament is 3.5 inches and has a red ribbon attached to hang it. The keychain is 2.5 inches and has a red tassel attached to it. Before monograming or using the items please make sure to remove the clear protective sticker. We put it on there to protect the items during shipping to keep them from getting scratched. The ornament and keychain make great gifts for teachers or anyone in that field. They can be monogrammed or decorated with vinyl.