Metal is an affordable material that offers method of work that are very different with multiple finish. It is possible to paint it, to dip it in baths to have different finishes. Polishing will complete the aspect with shining or not.
This keyring is a quite simple product to make. Once again, the most important focus is the end-user impact. How is he going to feel the object in his hand. What size, what finish? We are always thinking he must have the brand with him and play with.