Natural Cellulose Sponges: Our dishcloths are made from high-quality plant wood pulp, biodegradable and environmentally friendly. No more bad odors with daily use. Naturally yellow, will not fade. Natural Cellulose Sponges that \"Pop Up\": All natural cellulose sponges that \"pop up\" are compressed to 2.5 mm thickness, but when easily placed in water for a few seconds, they become larger and softer and \"pop up\" into place. This reduces carbon emissions during shipping and gives you more space in your cabinets. Scratch-Free Washable Dishcloths: These washable dishcloths have special honeycomb holes, easy to lather and super absorbent. Compared to ordinary sponges, they can effectively trap dust, stains and dirt, but leave no marks on your plates, pots, kitchen counters, windows, bathrooms, etc. Fun DIY Cutouts Compressed Sponge: This compressed sponge is perfect for DIY cutouts for children. It's also fun for children to observe the compressed sponge swell up after being hydrated and develop an interest in housework.