Go to the Rainbow Realm to obtain this item.
Use the rainbow collecter and click on a Rainbow Crystal to get an item from it. If clicking on a rainbow crystal while holding this item and near it, you will do an mining animation and get an item or nothing.
Rainbow collecters looks like a mining hoe.
This item is only used for mining rainbow crystals.
This item is obtainable and is only obtainable from the Rainbow Realm.