Most kitchen sponges are made of plastic but this brush is made from sustainable bamboo and plant-based materials. The handle is made from sustainable bamboo and this brush has sturdy plant based palm fibre and bristles. This brush is ideal for scouring cast iron pans or burnt, baked on food from hard surfaces. Replaces plastic sponges Compostable Vegan How to Store: Store your scrubber bristle upside down, keeping water from pooling on the handle. About the Brand: Zefiro is a woman-founded, sustainable brand based out of Chicago, IL. The company provides reusable products, free of unnecessary packaging, that are safe for you and friendly to the planet. They also partner with 1% for the Planet, a non-profit organization that helps promote environmental stewardship.