Obsidian Pearl Mod 1.8, 1.7.10, 1.7.2 is about repairing tools and armor without the need for materials and experience. These pearls are crafted from obsidian and lava. Once crafted you may add other items such as iron ingots, flint, redstone, etc. to make a pearl capable of enchanting your tools and armor.

To use a pearl simply place it in your helmet armor slot and any tool you are currently using will be repaired and enchanted. This means it will not repair armor unless you place it in the hot bar.

Pearls have the ability to repair themselves after being damaged. No amount of damage will destroy a pearl, however you must right click the pearl the same way as when you eat, and it will consume a bucket of lava to restore part of itself in return.