Flint and Steel

A flint and steel is a tool used to light fires.

Trading
Farmer villagers prior to Java Edition 1.8 would trade flint and steel for emeralds. If a world was created before this version, such a villager can be brought forward to current versions and still traded with as a renewable source of flint and steels

Usage
Despite using iron in its crafting recipe, it cannot be smelted into iron nuggets.

Igniting
When on top of a solid, fully opaque block or on the sides of a flammable block, the flint and steel sets a fire on the surface on which it was used. Flint and steel has 65 uses. If used on a transparent block (such as glass) or a block that is underwater, it does not start a fire but still consumes durability. Durability is also consumed if it is used on an already existing fire.

It also can be used to light nether portals.

In both survival and creative, using flint and steel on TNT ignites it. Flint and steel can also be used to detonate creepers.

Enchantments
Flint and steel can receive the following enchantments, but only through an anvil:


 * Unbreaking
 * Mending
 * Curse of Vanishing

Trivia

 * In Adventure mode, flint and steel cannot light fires, nor can it ignite nether portals (unless it has the tag {CanPlaceOn:obsidian}). However, it can still ignite TNT and creepers.
 * The name "Flint and Steel" is inaccurate considering there is no steel in the game and it's made with iron instead.