Spell-molds

A spell-mold is an object with magical symbols permanently affixed to it. Common methods include engraving or embroidering. These are sometimes conflated with Enchantments, but they are different. Spell-molds are just permanent spell arrays, so you still need to be a mage to use them. Enchantments, on the other hand, are permanent spells, so enchantments can be used by non-mages.

Utility

Spell-molds serve the purpose of making a particular spell easy to quickly and repeatedly cast. They are usually a piece of apparel or a small, portable object, such as a wand. Some mages also have spell-molds in or on their floors or walls. It is rare, but not unheard of, for a mage to make their own body into a spell-mold, usually through tattoos.

Manufacturing

Creating a spell-mold is quite simple. All you need to do is put magical symbols on something in a way that is permanent. Spell-molds must be made of durable materials and handled with care to be safe, as a damaged magical array can miscast the spell.
Because of the danger of miscasting, many places have regulations on what spell-molds can be made of and who can make them.

Access & Availability

Simple spell-molds are somewhat common, but the more complex they are, the rarer and more expensive they are. Some places regulate ownership and storage of spell-molds, especially more complex and dangerous types.