Professional Plus CraftID signature medallions are typically used by artists and craftspeople who sell many items that are similar in design and/or materials. Serialization means that each individual CraftID can be laser engraved with unique information such as a serial number, sequence number, date, SKU or other reference. Your Professional Plus CraftID can also identify materials used or something else. We can create CraftIDs that each carry some unique information. You choose what information to include and use it promote your work, invite referrals, highlight promotions or track your inventory.