This Pop Up Sponge is an eco-friendly kitchen essential for all your cleaning needs. Functional, 100% plant base, biodegradable, compostable, scratch and odor resistant. Life of the sponge is long lasting, up to 3-6 months and features a charming colorful design and a cotton string hanging loop. Simply soak the sponge in water, wait for it to expand and use. This multi-purpose and quick drying sponge comes on a brown paper backer card (4x5). Available in 3 assorted styles: Mushroom/IN A WORLD OF FLOWERS BE A MUSHROOM, Mushroom & Snail/ALL GOOD THINGS ARE WILD & FREE, Mushroom and Butterfly/FOLLOW THE MAGIC. When needed boil sponge in water for a few minutes and air dry completely between uses. Cellulose (Wood Pulp), Cotton.