Unbreaking I is an enchantment in the game Minecraft that can be applied to tools, weapons, and armor. This enchantment increases the durability of these items, allowing them to last longer before breaking. With Unbreaking I, there is a chance that using the item will not consume its durability, effectively prolonging its lifespan. The enchantment can be obtained through an enchanting table, an anvil, or by finding enchanted items in the game. Unbreaking I is the lowest level of the Unbreaking enchantment, with higher levels like Unbreaking II and III providing even greater durability benefits.