Did you know that luffas (loofahs) are actually a gourd?! They are grown, dried, and peeled to become the sponge you know them as. You can use them in the shower (they aren't uncomfortable stiff, but they scrub well) or cut them into smaller pieces and use them for your dishes. They will last a long time and are a more natural alternative to synthetic sponges! These are not bleached so they may have some color variation, but this doesn't mean they are moldy or dirty.